ARM: ux500: kill off L2CC static map

The l2x0 level 2 cache initialization used a static map
to get at the l2x0 registers. Get rid of this by getting
the register range from the device tree and just remap it
for the short time we need it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --cc arch/arm/mach-ux500/cache-l2x0.c
Simple merge

diff --cc arch/arm/mach-ux500/cpu-db8500.c
Simple merge