Revert "ARM: 7691/1: mm: kill unused TLB_CAN_READ_FROM_L1_CACHE and use ALT_SMP instead"

This reverts commit 0acf7b6cc04040f4fa04fd6cb5650e45876890c0.

Conflicts:
	arch/arm/mm/proc-v7-2level.S
	arch/arm/mm/proc-v7-3level.S
	arch/arm/mm/proc-v7.S
defconfig update