feat(mt8188): initialize GIC

Initialize GIC for mt8188.

TEST=build pass
BUG=b:236331724

Change-Id: I5acf77d654f1bbce32e9fbb3f3567600b7db10ed
diff --git a/plat/mediatek/drivers/gic600/rules.mk b/plat/mediatek/drivers/gic600/rules.mk
new file mode 100644
index 0000000..3070591
--- /dev/null
+++ b/plat/mediatek/drivers/gic600/rules.mk
@@ -0,0 +1,14 @@
+#
+# Copyright (c) 2022, MediaTek Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+LOCAL_DIR := $(call GET_LOCAL_DIR)
+
+MODULE := gic600
+LOCAL_SRCS-y := $(LOCAL_DIR)/mt_gic_v3.c
+
+PLAT_INCLUDES += -I${LOCAL_DIR}
+
+$(eval $(call MAKE_MODULE,$(MODULE),$(LOCAL_SRCS-y),$(MTK_BL)))