platform/target: msm8909: Define IRQ and IOMAP regs for SMD and init/uninit SMD

Define IRQ and IOMAP regs for SMD.Also, add target specific functions for SMD which
intializes the SMD interface, using which RPM is notified.

Change-Id: Ia1cdb69beee6908eb76641cf60d04bc7d0c641fb
diff --git a/platform/msm8909/include/platform/iomap.h b/platform/msm8909/include/platform/iomap.h
index 4f59eff..e7b0d89 100644
--- a/platform/msm8909/include/platform/iomap.h
+++ b/platform/msm8909/include/platform/iomap.h
@@ -52,6 +52,7 @@
 #define MSM_GIC_CPU_BASE            (APPS_SS_BASE + 0x2000)
 #define APPS_APCS_QTMR_AC_BASE      (APPS_SS_BASE + 0x00020000)
 #define APPS_APCS_F0_QTMR_V1_BASE   (APPS_SS_BASE + 0x00021000)
+#define APCS_ALIAS0_IPC_INTERRUPT   (APPS_SS_BASE + 0x00011008)
 #define QTMR_BASE                   APPS_APCS_F0_QTMR_V1_BASE
 
 #define PERIPH_SS_BASE              0x07800000