Revert "ARM: 7080/1: l2x0: make sure I&D are not locked down on init"

This reverts commit bac7e6ecf60933b68af910eb4c83a775a8b20b19.

Conflicts:
	arch/arm/include/asm/hardware/cache-l2x0.h

Change-Id: I60ad364c3776a199e87ee66c57414c7456cdf158