refator(mediatek): move common definitions of pmic wrap to common folder

Some definitions can be shared among mt8192, mt8195, and
mt8186, so move them to pmic_wrap_init_common.h.

Change-Id: I992b61a47a84039fe8c246e2ff75721c57ee41a5
diff --git a/plat/mediatek/mt8192/platform.mk b/plat/mediatek/mt8192/platform.mk
index e26d464..ccc9a71 100644
--- a/plat/mediatek/mt8192/platform.mk
+++ b/plat/mediatek/mt8192/platform.mk
@@ -12,6 +12,7 @@
                  -I${MTK_PLAT}/drivers/gic600/                    \
                  -I${MTK_PLAT}/drivers/gpio/                      \
                  -I${MTK_PLAT}/drivers/lpm/                       \
+                 -I${MTK_PLAT}/drivers/pmic_wrap/                 \
                  -I${MTK_PLAT}/drivers/rtc/                       \
                  -I${MTK_PLAT}/drivers/timer/                     \
                  -I${MTK_PLAT}/drivers/uart/                      \