Bluetooth: Add management setting for use of debug keys

When the controller has been enabled to allow usage of debug keys, then
clearly identify that in the current settings information.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index e19049f..f87f5d7 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -95,6 +95,7 @@
 #define MGMT_SETTING_LE			0x00000200
 #define MGMT_SETTING_ADVERTISING	0x00000400
 #define MGMT_SETTING_SECURE_CONN	0x00000800
+#define MGMT_SETTING_DEBUG_KEYS		0x00001000
 
 #define MGMT_OP_READ_INFO		0x0004
 #define MGMT_READ_INFO_SIZE		0