feat(plat/mdeiatek/mt8192): add DFD control in SiP service

DFD (Design for Debug) is a debugging tool, which scans
flip-flops and dumps to internal RAM on the WDT reset.
After system reboots, those values could be showed for
debugging.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: I9c7af9a4f75216ed2c6b44458d121a352bef4b95
diff --git a/plat/mediatek/mt8192/platform.mk b/plat/mediatek/mt8192/platform.mk
index 7761a55..cbdaadd 100644
--- a/plat/mediatek/mt8192/platform.mk
+++ b/plat/mediatek/mt8192/platform.mk
@@ -19,6 +19,7 @@
                  -I${MTK_PLAT_SOC}/drivers/apusys/                \
                  -I${MTK_PLAT_SOC}/drivers/dcm                    \
                  -I${MTK_PLAT_SOC}/drivers/devapc                 \
+                 -I${MTK_PLAT_SOC}/drivers/dfd                    \
                  -I${MTK_PLAT_SOC}/drivers/emi_mpu/               \
                  -I${MTK_PLAT_SOC}/drivers/gpio/                  \
                  -I${MTK_PLAT_SOC}/drivers/mcdi/                  \
@@ -68,6 +69,7 @@
                    ${MTK_PLAT_SOC}/drivers/dcm/mtk_dcm.c                 \
                    ${MTK_PLAT_SOC}/drivers/dcm/mtk_dcm_utils.c           \
                    ${MTK_PLAT_SOC}/drivers/devapc/devapc.c               \
+                   ${MTK_PLAT_SOC}/drivers/dfd/plat_dfd.c                \
                    ${MTK_PLAT_SOC}/drivers/emi_mpu/emi_mpu.c             \
                    ${MTK_PLAT_SOC}/drivers/gpio/mtgpio.c                 \
                    ${MTK_PLAT_SOC}/drivers/mcdi/mt_cpu_pm.c              \