Currently most of the assembly files that use architecture extensions
enable them using the .arch directive but crc32.S uses .cpu instead. Move
that over to .arch for consistency.
Signed-off-by: NMark Brown <broonie@kernel.org>
Acked-by: NArd Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20200414182843.31664-1-broonie@kernel.orgSigned-off-by: NWill Deacon <will@kernel.org>