feat(mt8196): add APU power-on init flow

Add the APU (AI processing unit) power init flow to prepare the hardware
setting before using APU power functions.

Change-Id: I595b1d5100a4f083263de6527f920e5168700b7a
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 630a3f0..abc9d8f 100644
--- a/plat/mediatek/mt8196/include/platform_def.h
+++ b/plat/mediatek/mt8196/include/platform_def.h
@@ -31,6 +31,14 @@
 #define AUDIO_BASE		(IO_PHYS + 0x0a110000)
 
 /*******************************************************************************
+ * APUSYS related constants
+ ******************************************************************************/
+#define APUSYS_BASE			(IO_PHYS + 0x09000000)
+#define APUSYS_CE_BASE			(IO_PHYS + 0x090B0000)
+
+#define APU_MBOX0			(0x4C200000)
+
+/*******************************************************************************
  * SPM related constants
  ******************************************************************************/
 #define SPM_BASE		(IO_PHYS + 0x0C004000)