ARM: gic: Move GIC based code out from mpm-8625

Moving code which modifies the GIC registers. As there is no global
lock in gic code, moving the code out.

Change-Id: I85a2bd580dbeefc942a3307f3c0cad8b1da509b7
Signed-off-by: Taniya Das <tdas@codeaurora.org>
4 files changed