PR #1794: Update cpu_detect.cc

fix hw crc32 and AES capability check, fix undefined

Imported from GitHub PR #1794

Source and explanation
JuliaLang/julia#26458
memcached/memcached#744

For build for aarch64 on v22_clang-16.0.6-centos7
`
abseil-cpp/absl/crc/internal/cpu_detect.cc:273:20: error: use of undeclared identifier 'HWCAP_CRC32'
  return (hwcaps & HWCAP_CRC32) && (hwcaps & HWCAP_PMULL);
                   ^
abseil-cpp/absl/crc/internal/cpu_detect.cc:273:46: error: use of undeclared identifier 'HWCAP_PMULL'
  return (hwcaps & HWCAP_CRC32) && (hwcaps & HWCAP_PMULL);
`

Merge 3ee325b into 940e0ec

Merging this change closes #1794

COPYBARA_INTEGRATE_REVIEW=#1794 from Dertosh:patch-1 3ee325b
PiperOrigin-RevId: 705936372
Change-Id: Ifebd6d1a854e17acf6cc00bab92053bc0d4c2349

absl/crc/internal/cpu_detect.cc

@@ -269,8 +269,12 @@ CpuType GetCpuType() {
 }
 
 bool SupportsArmCRC32PMULL() {
+#if defined(HWCAP_CRC32) && defined(HWCAP_PMULL)
   uint64_t hwcaps = getauxval(AT_HWCAP);
   return (hwcaps & HWCAP_CRC32) && (hwcaps & HWCAP_PMULL);
+#else
+  return false;
+#endif
 }
 
 #else