[PATCH v3] arm64: vdso32: drop -no-integrated-as flag

[Stephen Boyd]

Quoting Nick Desaulniers (2021-04-20 10:44:25)
> Clang can assemble these files just fine; this is a relic from the top
> level Makefile conditionally adding this. We no longer need --prefix,
> --gcc-toolchain, or -Qunused-arguments flags either with this change, so
> remove those too.
> 
> To test building:
> $ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
>   CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make LLVM=1 LLVM_IAS=1 \
>   defconfig arch/arm64/kernel/vdso32/
> 
> Suggested-by: Nathan Chancellor <nathan at kernel.org>
> Signed-off-by: Nick Desaulniers <ndesaulniers at google.com>
> Reviewed-by: Nathan Chancellor <nathan at kernel.org>
> Reviewed-by: Vincenzo Frascino <vincenzo.frascino at arm.com>
> ---

It boots for me and compat vDSO seems to work properly per
tools/testing/selftests/vDSO/, userspace programs aren't crashing right
and left, must be good:

Tested-by: Stephen Boyd <swboyd at chromium.org>