wireless: move regulatory_init to .init.text

regulatory_init is only called by cfg80211_init which is in .init.text,
too.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/wireless/reg.c

@@ -2630,7 +2630,7 @@ void reg_device_remove(struct wiphy *wiphy)
 	mutex_unlock(&reg_mutex);
 }
 
-int regulatory_init(void)
+int __init regulatory_init(void)
 {
 	int err = 0;
 
@@ -2676,7 +2676,7 @@ int regulatory_init(void)
 	return 0;
 }
 
-void regulatory_exit(void)
+void /* __init_or_exit */ regulatory_exit(void)
 {
 	struct regulatory_request *reg_request, *tmp;
 	struct reg_beacon *reg_beacon, *btmp;

net/wireless/reg.h

@@ -10,7 +10,7 @@ int regulatory_hint_user(const char *alpha2);
 
 void reg_device_remove(struct wiphy *wiphy);
 
-int regulatory_init(void);
+int __init regulatory_init(void);
 void regulatory_exit(void);
 
 int set_regdom(const struct ieee80211_regdomain *rd);