staging: brcm80211: add missing KERN_ facility level to printk()

Debug printk() call was missing KERN_DEBUG facility level.
Signed-off-by: Henry Ptasinski <henryp@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmsmac/phy/phy_n.c

@@ -24564,7 +24564,8 @@ static void wlc_phy_calc_rx_iq_comp_nphy(phy_info_t *pi, u8 core_mask)
 	}
 
 	if (bcmerror != 0) {
-		printk("%s: Failed, cnt = %d\n", __func__, cal_retry);
+		printk(KERN_DEBUG "%s: Failed, cnt = %d\n", __func__,
+			cal_retry);
 
 		if (cal_retry < CAL_RETRY_CNT) {
 			cal_retry++;