uboot-mtk-20220606: arm: Only support ARM64_CRC32 when using GCC#36
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Today, only gcc has __builtin_aarch64_crc32b (clang-16 does not, for example). Make this option depend on CC_IS_GCC. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
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Today, only gcc has __builtin_aarch64_crc32b (clang-16 does not, for
example). Make this option depend on CC_IS_GCC.