By default clang generates code with neon instructions. These are not
supported on all arm targets so default to fpu=none.
Change-Id: I48fc505107d131466be39f466151df62b2d2bd0b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69745
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>