cfg80211: export regulatory_hint_user() API

This is to help the hardware configured in world
roaming mode to save power when not connected to
any AP.

CRs-Fixed: 542802
Change-Id: Ia643d0e9848dcd486832973bd6dd186edd7bd4ea
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b96094c..a216f8e 100755
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1648,6 +1648,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(regulatory_hint_user);
 
 /* Driver hints */
 int regulatory_hint(struct wiphy *wiphy, const char *alpha2)