mediatek: mt8192: dcm: Add mcusys related dcm drivers

1. Add mcusys related dcm drivers
2. Turn on mcusys-related dcm by default

Change-Id: Ibbee37c87cc38e7a6cd7c93c2fc0817aad6dbe95
diff --git a/plat/mediatek/mt8192/bl31_plat_setup.c b/plat/mediatek/mt8192/bl31_plat_setup.c
index 2a0e131..32e124f 100644
--- a/plat/mediatek/mt8192/bl31_plat_setup.c
+++ b/plat/mediatek/mt8192/bl31_plat_setup.c
@@ -19,6 +19,7 @@
 #include <gpio/mtgpio.h>
 #include <mt_gic_v3.h>
 #include <mt_timer.h>
+#include <mtk_dcm.h>
 #include <plat_params.h>
 #include <plat_private.h>
 
@@ -83,6 +84,11 @@
  ******************************************************************************/
 void bl31_platform_setup(void)
 {
+	/* Set dcm on */
+	if (!dcm_set_default()) {
+		ERROR("Failed to set default dcm on!!\n");
+	}
+
 	/* Initialize the GIC driver, CPU and distributor interfaces */
 	mt_gic_driver_init();
 	mt_gic_init();