With recent gcc versions we get errors like:
/linux/arch/arm/mm/proc-v7.S: Assembler messages:
/linux/arch/arm/mm/proc-v7.S:425: Error: junk at end of line, first unrecognized character is `#'
Seen on at least two samsung kernels based on 3.4 and 3.10. Fix issue
by backporting (part of) commit found in mainline.
