mac80211: add #ifdef CONFIG_MAC80211_VERBOSE_DEBUG for a debug printk

When not debugging mac80211 code, station state transitions do not need to
show up in the kernel log.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 31cd6d9..4034ee61 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1379,8 +1379,10 @@
 		return -EINVAL;
 	}
 
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	printk(KERN_DEBUG "%s: moving STA %pM to state %d\n",
 		sta->sdata->name, sta->sta.addr, new_state);
+#endif
 
 	/*
 	 * notify the driver before the actual changes so it can