feat(plat/mediatek/apu): setup mt8192 APU_S_S_4 and APU_S_S_5 permission

Setup APU_S_S_4/APU_S_S_5 permission as SEC_RW_ONLY.

Change-Id: I6c50b2913bf34270a1b0ffaf0e0c435fee192a4c
diff --git a/plat/mediatek/mt8192/drivers/devapc/devapc.c b/plat/mediatek/mt8192/drivers/devapc/devapc.c
index c7dbbee..8312bb8 100644
--- a/plat/mediatek/mt8192/drivers/devapc/devapc.c
+++ b/plat/mediatek/mt8192/drivers/devapc/devapc.c
@@ -82,12 +82,12 @@
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN),
 DAPC_INFRA_AO_SYS0_ATTR("APU_S_S-4",
-			NO_PROTECTION, FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
+			SEC_RW_ONLY,   FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN),
 DAPC_INFRA_AO_SYS0_ATTR("APU_S_S-5",
-			NO_PROTECTION, FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
+			SEC_RW_ONLY,   FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN,
 			FORBIDDEN,     FORBIDDEN,     FORBIDDEN,     FORBIDDEN),