feat(mt8188): add support for PTP3

Add PTP3 driver to protect CPU from excessive voltage drop in CPU
heavy loading.

Signed-off-by: Riven Chen <riven.chen@mediatek.corp-partner.google.com>
Change-Id: I394096be43e1d1d615f99b22f38f0b3ae0bb40c1
diff --git a/plat/mediatek/drivers/ptp3/rules.mk b/plat/mediatek/drivers/ptp3/rules.mk
new file mode 100644
index 0000000..81d79d2
--- /dev/null
+++ b/plat/mediatek/drivers/ptp3/rules.mk
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2022, MediaTek Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+LOCAL_DIR := $(call GET_LOCAL_DIR)
+
+MODULE := mtk_ptp3
+
+LOCAL_SRCS-y := ${LOCAL_DIR}/ptp3_common.c
+
+PLAT_INCLUDES += -I${LOCAL_DIR}
+PLAT_INCLUDES += -I${LOCAL_DIR}/$(MTK_SOC)
+
+$(eval $(call MAKE_MODULE,$(MODULE),$(LOCAL_SRCS-y),$(MTK_BL)))