lib80211: silence excessive crypto debugging messages

When they were part of the now defunct ieee80211 component, these
messages were only visible when special debugging settings were enabled.
Let's mirror that with a new lib80211 debugging Kconfig option.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c
index 7e8e22b..c362873 100644
--- a/net/wireless/lib80211_crypt_tkip.c
+++ b/net/wireless/lib80211_crypt_tkip.c
@@ -465,12 +465,14 @@
 	pos += 8;
 
 	if (tkip_replay_check(iv32, iv16, tkey->rx_iv32, tkey->rx_iv16)) {
+#ifdef CONFIG_LIB80211_DEBUG
 		if (net_ratelimit()) {
 			printk(KERN_DEBUG "TKIP: replay detected: STA=%pM"
 			       " previous TSC %08x%04x received TSC "
 			       "%08x%04x\n", hdr->addr2,
 			       tkey->rx_iv32, tkey->rx_iv16, iv32, iv16);
 		}
+#endif
 		tkey->dot11RSNAStatsTKIPReplays++;
 		return -4;
 	}
@@ -505,10 +507,12 @@
 			 * it needs to be recalculated for the next packet. */
 			tkey->rx_phase1_done = 0;
 		}
+#ifdef CONFIG_LIB80211_DEBUG
 		if (net_ratelimit()) {
 			printk(KERN_DEBUG "TKIP: ICV error detected: STA="
 			       "%pM\n", hdr->addr2);
 		}
+#endif
 		tkey->dot11RSNAStatsTKIPICVErrors++;
 		return -5;
 	}