nl80211: Move peer link state definition to nl80211

These definitions need to be exposed now that we can set the peer link
states via NL80211_ATTR_STA_PLINK_STATE.  They were already being
(opaquely) reported by NL80211_STA_INFO_PLINK_STATE.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 6ecd586..be70c70 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -730,9 +730,9 @@
 #ifdef CONFIG_MAC80211_MESH
 		if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
 			switch (params->plink_state) {
-			case PLINK_LISTEN:
-			case PLINK_ESTAB:
-			case PLINK_BLOCKED:
+			case NL80211_PLINK_LISTEN:
+			case NL80211_PLINK_ESTAB:
+			case NL80211_PLINK_BLOCKED:
 				sta->plink_state = params->plink_state;
 				break;
 			default: