Move Stack Protector Global Flag in Toolsdef (#755)

## Description

-mstack-protector-guard=global flag is required to use stack cookies for
GCC builds. Clang toolchains inherit flags from GCC defs in the
tools_def and does not support the -mstack-protector-guard option. This
PR moves the -mstack-protector-guard option to ensure it only targets
GCC5 builds.

- [x] Impacts functionality?
- **Functionality** - Does the change ultimately impact how firmware
functions?
- Examples: Add a new library, publish a new PPI, update an algorithm,
...
- [x] Impacts security?
- **Security** - Does the change have a direct security impact on an
application,
    flow, or firmware?
  - Examples: Crypto algorithm change, buffer overflow fix, parameter
    validation improvement, ...
- [x] Breaking change?
- **Breaking change** - Will anyone consuming this change experience a
break
    in build or boot behavior?
- Examples: Add a new library class, move a module to a different repo,
call
    a function in a new library class in a pre-existing module, ...
- [ ] Includes tests?
  - **Tests** - Does the change include any explicit test code?
  - Examples: Unit tests, integration tests, robot tests, ...
- [ ] Includes documentation?
- **Documentation** - Does the change contain explicit documentation
additions
    outside direct code modifications (and comments)?
- Examples: Update readme file, add feature readme file, link to
documentation
    on an a separate Web page, ...

## How This Was Tested

Tested in pipelines

## Integration Instructions

The Conf/ folder will need to be deleted for existing clones so it can
be regenerated

BaseTools/Conf/tools_def.template

@@ -26,8 +26,9 @@
 # 2.44 - Add Rust build support
 # 2.45 - Enable stack cookies to GCC X64 builds via -fstack-protector flag
 # 2.46 - Enable stack cookies for IA32, ARM, and AARCH64 builds for GCC and MSVC
+# 2.47 - Target stack protector global build flag to GCC5
 #
-#!VERSION=2.46
+#!VERSION=2.47
 
 IDENTIFIER = Default TOOL_CHAIN_CONF
 
@@ -2034,7 +2035,7 @@ NOOPT_*_*_OBJCOPY_ADDDEBUGFLAG     = --add-gnu-debuglink=$(DEBUG_DIR)/$(MODULE_N
 *_*_*_DTCPP_PATH                   = DEF(DTCPP_BIN)
 *_*_*_DTC_PATH                     = DEF(DTC_BIN)
 
-DEFINE GCC_ALL_CC_FLAGS            = -g -Os -fshort-wchar -fno-builtin -fno-strict-aliasing -Wall -Werror -Wno-array-bounds -include AutoGen.h -fno-common -fstack-protector -mstack-protector-guard=global
+DEFINE GCC_ALL_CC_FLAGS            = -g -Os -fshort-wchar -fno-builtin -fno-strict-aliasing -Wall -Werror -Wno-array-bounds -include AutoGen.h -fno-common
 DEFINE GCC_IA32_CC_FLAGS           = DEF(GCC_ALL_CC_FLAGS) -m32 -malign-double -freorder-blocks -freorder-blocks-and-partition -O2 -mno-stack-arg-probe
 DEFINE GCC_X64_CC_FLAGS            = DEF(GCC_ALL_CC_FLAGS) -mno-red-zone -Wno-address -mno-stack-arg-probe
 DEFINE GCC_ARM_CC_FLAGS            = DEF(GCC_ALL_CC_FLAGS) -mlittle-endian -mabi=aapcs -fno-short-enums -funsigned-char -ffunction-sections -fdata-sections -fomit-frame-pointer -Wno-address -mthumb -fno-pic -fno-pie
@@ -2120,8 +2121,8 @@ DEFINE GCC49_ARM_ASLDLINK_FLAGS      = DEF(GCC48_ARM_ASLDLINK_FLAGS)
 DEFINE GCC49_AARCH64_ASLDLINK_FLAGS  = DEF(GCC48_AARCH64_ASLDLINK_FLAGS)
 DEFINE GCC49_ASLCC_FLAGS             = DEF(GCC48_ASLCC_FLAGS)
 
-DEFINE GCC5_IA32_CC_FLAGS            = DEF(GCC49_IA32_CC_FLAGS)
-DEFINE GCC5_X64_CC_FLAGS             = DEF(GCC49_X64_CC_FLAGS)
+DEFINE GCC5_IA32_CC_FLAGS            = DEF(GCC49_IA32_CC_FLAGS) -fstack-protector -mstack-protector-guard=global
+DEFINE GCC5_X64_CC_FLAGS             = DEF(GCC49_X64_CC_FLAGS) -fstack-protector -mstack-protector-guard=global
 DEFINE GCC5_IA32_X64_DLINK_COMMON    = DEF(GCC49_IA32_X64_DLINK_COMMON)
 DEFINE GCC5_IA32_X64_ASLDLINK_FLAGS  = DEF(GCC49_IA32_X64_ASLDLINK_FLAGS)
 DEFINE GCC5_IA32_X64_DLINK_FLAGS     = DEF(GCC49_IA32_X64_DLINK_FLAGS)
@@ -2131,10 +2132,10 @@ DEFINE GCC5_X64_DLINK2_FLAGS         = DEF(GCC49_X64_DLINK2_FLAGS) -Wno-error
 DEFINE GCC5_ASM_FLAGS                = DEF(GCC49_ASM_FLAGS)
 DEFINE GCC5_ARM_ASM_FLAGS            = DEF(GCC49_ARM_ASM_FLAGS)
 DEFINE GCC5_AARCH64_ASM_FLAGS        = DEF(GCC49_AARCH64_ASM_FLAGS)
-DEFINE GCC5_ARM_CC_FLAGS             = DEF(GCC49_ARM_CC_FLAGS)
-DEFINE GCC5_ARM_CC_XIPFLAGS          = DEF(GCC49_ARM_CC_XIPFLAGS)
-DEFINE GCC5_AARCH64_CC_FLAGS         = DEF(GCC49_AARCH64_CC_FLAGS)
-DEFINE GCC5_AARCH64_CC_XIPFLAGS      = DEF(GCC49_AARCH64_CC_XIPFLAGS)
+DEFINE GCC5_ARM_CC_FLAGS             = DEF(GCC49_ARM_CC_FLAGS) -fstack-protector -mstack-protector-guard=global
+DEFINE GCC5_ARM_CC_XIPFLAGS          = DEF(GCC49_ARM_CC_XIPFLAGS) -fstack-protector -mstack-protector-guard=global
+DEFINE GCC5_AARCH64_CC_FLAGS         = DEF(GCC49_AARCH64_CC_FLAGS) -fstack-protector -mstack-protector-guard=global
+DEFINE GCC5_AARCH64_CC_XIPFLAGS      = DEF(GCC49_AARCH64_CC_XIPFLAGS) -fstack-protector -mstack-protector-guard=global
 DEFINE GCC5_ARM_DLINK_FLAGS          = DEF(GCC49_ARM_DLINK_FLAGS)
 DEFINE GCC5_ARM_DLINK2_FLAGS         = DEF(GCC49_ARM_DLINK2_FLAGS) -Wno-error
 DEFINE GCC5_AARCH64_DLINK_FLAGS      = DEF(GCC49_AARCH64_DLINK_FLAGS)