cosmetic: mgcp_conn.h: fix indentation whitespace

Change-Id: I6b12b589d1b0a8f95a8283aac8ba0ad22026b43f
diff --git a/include/osmocom/mgcp/mgcp_conn.h b/include/osmocom/mgcp/mgcp_conn.h
index a08c089..3eca2f8 100644
--- a/include/osmocom/mgcp/mgcp_conn.h
+++ b/include/osmocom/mgcp/mgcp_conn.h
@@ -145,12 +145,12 @@
 enum {
 	IN_STREAM_ERR_TSTMP_CTR,
 	OUT_STREAM_ERR_TSTMP_CTR,
-        RTP_PACKETS_RX_CTR,
-        RTP_OCTETS_RX_CTR,
-        RTP_PACKETS_TX_CTR,
-        RTP_OCTETS_TX_CTR,
-        RTP_DROPPED_PACKETS_CTR,
-        RTP_NUM_CONNECTIONS,
+	RTP_PACKETS_RX_CTR,
+	RTP_OCTETS_RX_CTR,
+	RTP_PACKETS_TX_CTR,
+	RTP_OCTETS_TX_CTR,
+	RTP_DROPPED_PACKETS_CTR,
+	RTP_NUM_CONNECTIONS,
 };
 
 /* RTP per-connection statistics. Instances of the corresponding rate counter group