nl80211: Allow setting multicast rate on OCB interfaces

Allow setting multicast rate on OCB interfaces.
Current behaviour results in EOPNOTSUPP when attempting this.

Signed-off-by: Bertold Van den Bergh <bertold.vandenbergh@esat.kuleuven.be>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5849fa1..5d8748b 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7391,7 +7391,8 @@
 	int err;
 
 	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
-	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
+	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
 		return -EOPNOTSUPP;
 
 	if (!rdev->ops->set_mcast_rate)