protocol/gsm_04_14: Fix the OPEN LOOP message type

Change-Id: Id4350dee4353ebf9de0450dd5dab6e4f2ee7c3a6
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/include/osmocom/gsm/protocol/gsm_04_14.h b/include/osmocom/gsm/protocol/gsm_04_14.h
index 5ef7837..deb474e 100644
--- a/include/osmocom/gsm/protocol/gsm_04_14.h
+++ b/include/osmocom/gsm/protocol/gsm_04_14.h
@@ -20,7 +20,7 @@
 };
 
 #define GSM414_MT_CLOSE_TCH_LOOP_ACK	0x01	/* 8.2 */
-#define GSM414_MT_OPEN_LOOP_CMD		0x02	/* 8.3 */
+#define GSM414_MT_OPEN_LOOP_CMD		0x06	/* 8.3 */
 #define GSM414_OPEN_LOOP_ACK_IE		0x81
 
 #define GSM414_MT_CLOSE_MSLOT_LOOP_CMD	0x20	/* 8.4 */