feat(mt8196): enable DP and eDP for mt8196

- Add register definitions for DP
- Add mmap entry for DP register access

Change-Id: I22ed9fa36a7e13fcaed0c137d0e8f4449b6a52d7
Signed-off-by: Mac Shen <mac.shen@mediatek.com>
diff --git a/plat/mediatek/mt8196/include/platform_def.h b/plat/mediatek/mt8196/include/platform_def.h
index 5b45d92..630a3f0 100644
--- a/plat/mediatek/mt8196/include/platform_def.h
+++ b/plat/mediatek/mt8196/include/platform_def.h
@@ -128,6 +128,14 @@
 #define VDOSYS1_BASE		(IO_PHYS + 0x0C100000)
 
 /*******************************************************************************
+ * DP related constants
+ ******************************************************************************/
+#define EDP_SEC_BASE		(IO_PHYS + 0x2EC50000)
+#define DP_SEC_BASE		(IO_PHYS + 0x2EC10000)
+#define EDP_SEC_SIZE		(0x1000)
+#define DP_SEC_SIZE		(0x1000)
+
+/*******************************************************************************
  * EMI MPU related constants
  *******************************************************************************/
 #define EMI_MPU_BASE		(IO_PHYS + 0x00428000)