Fix misra warnings in SMC and power mgmt code

Change-Id: Ia00eba2b18804e6498d935d33ec104953e0e5e03
Signed-off-by: Sathees Balya <sathees.balya@arm.com>
diff --git a/plat/arm/board/fvp/fvp_def.h b/plat/arm/board/fvp/fvp_def.h
index 4e20c31..eb6f77f 100644
--- a/plat/arm/board/fvp/fvp_def.h
+++ b/plat/arm/board/fvp/fvp_def.h
@@ -97,7 +97,7 @@
 #define ARCH_MODEL			0x1
 
 /* FVP Power controller base address*/
-#define PWRC_BASE			0x1c100000
+#define PWRC_BASE			UL(0x1c100000)
 
 /* FVP SP804 timer frequency is 35 MHz*/
 #define SP804_TIMER_CLKMULT		1