fix(mediatek): support saving/restoring GICR registers

The GICR_IPRIORITYR[x] registers are not saved or restored in the
original design. When the kernel tries to use them, such as the
pseudo-NMI, it leads crashes and freezes. This patch adds support for
saving/restoring GICR registers.

Change-Id: I9718a75a1410ca14826710dfdf5f3226299fa6e2
1 file changed