iwlwifi: dvm: Fix probable mask then right shift defect

Precedence of & and >> is not the same and is not left to right.
shift has higher precedence and should be done after the mask.

Add parentheses around the mask.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

drivers/net/wireless/iwlwifi/dvm/lib.c

@@ -418,8 +418,8 @@ void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)
 
 static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)
 {
-	return BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3 >>
-			BT_UART_MSG_FRAME3SCOESCO_POS;
+	return (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
+		BT_UART_MSG_FRAME3SCOESCO_POS;
 }
 
 static void iwlagn_bt_traffic_change_work(struct work_struct *work)