qcacld-3.0: Fix wma_bus_suspend suspend type

Suspend type should be CDF_SYSTEM_SUSPEND.  Host gets
stuck while trying to post runtime suspend messages.

Change-Id: I5deeba401b7bda2a057802389d620149a92fcfbc
CRs-Fixed: 970656

core/wma/src/wma_features.c

@@ -6457,7 +6457,7 @@ int wma_runtime_suspend(void)
 int wma_bus_suspend(void)
 {
 
-	return __wma_bus_suspend(CDF_RUNTIME_SUSPEND);
+	return __wma_bus_suspend(CDF_SYSTEM_SUSPEND);
 }
 
 /**