gsm_subscriber: Increase the name to 160 charachters

160 charachters is the limit of the subscriber name inside
the notifySS nameIndicator/callingName.
diff --git a/openbsc/include/openbsc/gsm_subscriber.h b/openbsc/include/openbsc/gsm_subscriber.h
index 527056b..02cab40 100644
--- a/openbsc/include/openbsc/gsm_subscriber.h
+++ b/openbsc/include/openbsc/gsm_subscriber.h
@@ -7,7 +7,7 @@
 
 #define GSM_IMEI_LENGTH 17
 #define GSM_IMSI_LENGTH 17
-#define GSM_NAME_LENGTH 128
+#define GSM_NAME_LENGTH 160
 
 #define GSM_EXTENSION_LENGTH 15 /* MSISDN can only be 15 digits length */
 #define GSM_MIN_EXTEN 20000