Bluetooth: Fix EALREADY and ELOOP cases in bt_status()

'err' is known to be <0 at this point.

So, some cases can not be reached because of a missing "-".
Add it.

Fixes: ca2045e0 ("Bluetooth: Add bt_status")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

net/bluetooth/lib.c

@@ -170,7 +170,7 @@ __u8 bt_status(int err)
 	case -EMLINK:
 		return 0x09;
 
-	case EALREADY:
+	case -EALREADY:
 		return 0x0b;
 
 	case -EBUSY:
@@ -191,7 +191,7 @@ __u8 bt_status(int err)
 	case -ECONNABORTED:
 		return 0x16;
 
-	case ELOOP:
+	case -ELOOP:
 		return 0x17;
 
 	case -EPROTONOSUPPORT: