iwlwifi: fix semicolon.cocci warnings

drivers/net/wireless/intel/iwlwifi/iwl-io.c:243:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/iwl-io.c

@@ -267,7 +267,7 @@ static const char *get_rfh_string(int cmd)
 		IWL_CMD_MQ(cmd, RFH_Q_FRBDCB_WIDX, i);
 		IWL_CMD_MQ(cmd, RFH_Q_FRBDCB_RIDX, i);
 		IWL_CMD_MQ(cmd, RFH_Q_URBD_STTS_WPTR_LSB, i);
-	};
+	}
 
 	switch (cmd) {
 	IWL_CMD(RFH_RXF_DMA_CFG);