1. add 'ARM' prefix to choice menu 2. rename 'Generic Clang toolchain' to 'LLVM Clang toolchain' to avoid confuse with CONFIG_ARM_TOOLCHAIN_ARMCLANG Signed-off-by: chao an <anchao@xiaomi.com>
1. add 'ARM' prefix to choice menu 2. rename 'Generic Clang toolchain' to 'LLVM Clang toolchain' to avoid confuse with CONFIG_ARM_TOOLCHAIN_ARMCLANG Signed-off-by: chao an <anchao@xiaomi.com>