feat(mt8196): add APUSYS AO DevAPC setting

Apusys AO DevAPC is a set of control registers inside APU, controlling
the access permission of APU AO (Always On) domain.

This patch add the mt8196 APU AO DevAPC setting to setup the protection.

Change-Id: I975a92795031cd1813442302890e29b671ef16f1
Signed-off-by: Karl Li <karl.li@mediatek.com>
diff --git a/plat/mediatek/mt8196/include/platform_def.h b/plat/mediatek/mt8196/include/platform_def.h
index abc9d8f..d17d637 100644
--- a/plat/mediatek/mt8196/include/platform_def.h
+++ b/plat/mediatek/mt8196/include/platform_def.h
@@ -35,6 +35,7 @@
  ******************************************************************************/
 #define APUSYS_BASE			(IO_PHYS + 0x09000000)
 #define APUSYS_CE_BASE			(IO_PHYS + 0x090B0000)
+#define APUSYS_CTRL_DAPC_AO_BASE	(IO_PHYS + 0x090FC000)
 
 #define APU_MBOX0			(0x4C200000)