platform: msm_shared: Fix compilation warnings in shared drivers

Fix compilation warnings.

Change-Id: I09246797de33c29a1edeace4af99d3cb78257071
diff --git a/platform/msm_shared/interrupts.c b/platform/msm_shared/interrupts.c
index 9d84bb2..2fdaf35 100644
--- a/platform/msm_shared/interrupts.c
+++ b/platform/msm_shared/interrupts.c
@@ -31,6 +31,7 @@
 #include <platform/irqs.h>
 #include <platform/interrupts.h>
 #include <debug.h>
+#include <qgic.h>
 
 extern int target_supports_qgic();