UEFI Shell 21H2

* From edk2-stable202108
* Enable RISC-V 64-bit support

.github/workflows/linux_gcc_edk2.yml

@@ -12,7 +12,7 @@ env:
   GCC5_RISCV64_PREFIX: riscv64-linux-gnu-
   FULL_SHELL_GUID: EA4BB293-2D7F-4456-A681-1F22F42CD0BC
   BUILD_TYPES: DEBUG RELEASE
-  ARCHS: X64 IA32 AARCH64 ARM
+  ARCHS: X64 IA32 AARCH64 ARM RISCV64
   # Shell versions:
   #  2.2 added on 2017.03.31
   #  2.1 added on 2014.08.05

README.md

@@ -3,7 +3,7 @@ UEFI-Shell
 
 [![Build status](https://img.shields.io/github/workflow/status/pbatard/UEFI-Shell/Linux,%20gcc,%20EDK2.svg?label=Build%20Status&style=flat-square)](https://github.com/pbatard/UEFI-Shell/actions/workflows/linux_gcc_edk2.yml)
 [![Github stats](https://img.shields.io/github/downloads/pbatard/UEFI-Shell/total.svg?label=Downloads&style=flat-square)](https://github.com/pbatard/UEFI-Shell/releases)
-[![Release](https://img.shields.io/badge/Latest%20Release-21H1%20(edk2--stable202105)-blue.svg?style=flat-square)](https://github.com/pbatard/UEFI-Shell/releases)
+[![Release](https://img.shields.io/badge/Latest%20Release-21H2%20(edk2--stable202108)-blue.svg?style=flat-square)](https://github.com/pbatard/UEFI-Shell/releases)
 [![License](https://img.shields.io/badge/License-BSD%202--Clause-orange.svg)](https://opensource.org/licenses/BSD-2-Clause)
 
 This repository contains pre-built UEFI Shell binary images, generated from