platform: msm8952: add smd interrupt address for msmgold

Address for smd interrupts has changed in msmgold. Add function
to maintain backward compatibility and new address for msmgold.

Change-Id: I4e9bccd98b3a80dc8f1796629d70a2335c0f054f
diff --git a/platform/msm8952/platform.c b/platform/msm8952/platform.c
index 6e6ef21..1851c22 100644
--- a/platform/msm8952/platform.c
+++ b/platform/msm8952/platform.c
@@ -269,6 +269,14 @@
 		return APP_REGION_SIZE_8952;
 }
 
+uint32_t platform_get_apcs_ipc_base()
+{
+	if(platform_is_msmgold())
+		return APCS_ALIAS1_IPC_INTERRUPT_1;
+	else
+		return APCS_ALIAS0_IPC_INTERRUPT_2;
+}
+
 uint32_t platform_is_msm8976_v_1_1()
 {
 	uint32_t soc_ver = board_soc_version();