qcacld-3.0: Add feature flags for DISA functions

Add feature flags for DISA functionality in SME and WMA layers

Change-Id: I9fe33083469a2169cd06206e85d7965405d4a728
CRs-Fixed: 1076941
(cherry picked from commit 3c85d965eec08da145a26fc2ceefdaf8dcfb4df0)
diff --git a/core/wma/inc/wma_internal.h b/core/wma/inc/wma_internal.h
index f35044e..a35254a 100644
--- a/core/wma/inc/wma_internal.h
+++ b/core/wma/inc/wma_internal.h
@@ -1214,7 +1214,15 @@
 				       struct sir_mac_pwr_dbg_cmd *
 				       sir_pwr_dbg_params);
 
+#ifdef WLAN_FEATURE_DISA
 int wma_encrypt_decrypt_msg_handler(void *handle, uint8_t *data,
 			uint32_t data_len);
+#else
+static inline int wma_encrypt_decrypt_msg_handler(void *handle, uint8_t *data,
+			uint32_t data_len)
+{
+	return 0;
+}
+#endif
 
 #endif