ath,ar9170: move CTL_ defines into regd.h

The ar9170 driver needs the defines for conformance test limit groups
and cannot include regd_common.h

Signed-off-by: Joerg Albert <jal2@gmx.de>
Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/regd.h b/drivers/net/wireless/ath/regd.h
index 4d3c536..c1dd857 100644
--- a/drivers/net/wireless/ath/regd.h
+++ b/drivers/net/wireless/ath/regd.h
@@ -22,6 +22,12 @@
 
 #include "ath.h"
 
+enum ctl_group {
+	CTL_FCC = 0x10,
+	CTL_MKK = 0x40,
+	CTL_ETSI = 0x30,
+};
+
 #define NO_CTL 0xff
 #define SD_NO_CTL               0xE0
 #define NO_CTL                  0xff