mediatek: mt8183: add mcsi driver

add mcsi driver to support cache coherence.

Change-Id: I94f5922783e5dbc6b7e92aa06464bc1f0177f00a
Signed-off-by: kenny liang <kenny.liang@mediatek.com>
diff --git a/plat/mediatek/mt8183/bl31_plat_setup.c b/plat/mediatek/mt8183/bl31_plat_setup.c
index 5a0cb87..b451189 100644
--- a/plat/mediatek/mt8183/bl31_plat_setup.c
+++ b/plat/mediatek/mt8183/bl31_plat_setup.c
@@ -96,6 +96,9 @@
 	/* Initialize the GIC driver, CPU and distributor interfaces */
 	mt_gic_driver_init();
 	mt_gic_init();
+
+	/* Init mcsi SF */
+	plat_mtk_cci_init_sf();
 }
 
 /*******************************************************************************
@@ -104,6 +107,9 @@
  ******************************************************************************/
 void bl31_plat_arch_setup(void)
 {
+	plat_mtk_cci_init();
+	plat_mtk_cci_enable();
+
 	enable_scu(read_mpidr());
 
 	plat_configure_mmu_el3(BL_CODE_BASE,