platform/target: Define IRQ and IOMAP regs for SMD and init/uninit SMD

Define IRQ and IOMAP regs for SMD. Add target specific init/uninit for
SMD.

Change-Id: I09b5ea7923bfc5b2f2d7070f6f8b1900f6caef05
diff --git a/platform/msm8994/include/platform/iomap.h b/platform/msm8994/include/platform/iomap.h
index aea3d8c..2040d4a 100644
--- a/platform/msm8994/include/platform/iomap.h
+++ b/platform/msm8994/include/platform/iomap.h
@@ -52,6 +52,7 @@
 #define APCS_KPSS_WDT_BASE          (KPSS_BASE + 0x00017000)
 #define KPSS_APCS_QTMR_AC_BASE      (KPSS_BASE + 0x00020000)
 #define KPSS_APCS_F0_QTMR_V1_BASE   (KPSS_BASE + 0x00021000)
+#define APCS_ALIAS0_IPC_INTERRUPT   (KPSS_BASE + 0x0000D008)
 #define QTMR_BASE                   KPSS_APCS_F0_QTMR_V1_BASE
 
 #define PERIPH_SS_BASE              0xF9800000