mediatek: mt8192: Add Vcore DVFS driver

Change-Id: I4bd4612a7c7727a5be70957ae940e5f51c7ca5e6
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
diff --git a/plat/mediatek/common/mtk_sip_svc.h b/plat/mediatek/common/mtk_sip_svc.h
index cd4096e..45ce281 100644
--- a/plat/mediatek/common/mtk_sip_svc.h
+++ b/plat/mediatek/common/mtk_sip_svc.h
@@ -31,6 +31,10 @@
 #define MTK_SIP_KERNEL_BOOT_AARCH32		0x82000200
 #define MTK_SIP_KERNEL_BOOT_AARCH64		0xC2000200
 
+/* VCORE */
+#define MTK_SIP_VCORE_CONTROL_ARCH32		0x82000506
+#define MTK_SIP_VCORE_CONTROL_ARCH64		0xC2000506
+
 /* Mediatek SiP Calls error code */
 enum {
 	MTK_SIP_E_SUCCESS = 0,