uboot-imx

ARM1136: MX35: Make asm routines volatile in cache ops

As well as pushed for ARM926EJS, we certainly don't want
the compiler to reorganise the code for dcache flushing
Fix checkpatch warnings as well.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Marek Vasut <marex@denx.de>
CC: Albert Aribaud <albert.u.boot@aribaud.net>