mac80211: fix compile warning in 986-rt2x00-add-TX-LOFT-calibration.patch

Signed-off-by: Hauke Mehrtens <[email protected]>

package/kernel/mac80211/patches/rt2x00/986-rt2x00-add-TX-LOFT-calibration.patch

@@ -115,7 +115,7 @@
 +		rf_reg_record[CHAIN_1][12].reg = 20;
 +		rf_reg_record[CHAIN_1][12].value = rfvalue;
 +	} else {
-+		rt2x00_warn(rt2x00dev, "%s: Unknown chain = %u\n", chain);
++		rt2x00_warn(rt2x00dev, "Unknown chain = %u\n", chain);
 +		return;
 +	}
 +