mediatek: mt8195: initialize GIC

MT8192 GIC driver can be shared with MT8195. Move GIC driver to common
and do the initialization.

Signed-off-by: christine.zhu <christine.zhu@mediatek.corp-partner.google.com>
Change-Id: I63f3e668b5ca6df8bcf17b5cd4d53fa84f330fed
7 files changed