Shorten the mac address pattern, since some phones use different identifiers (such as the i2050 softphone).

(closes issue #12398)
Reported by: c_hans
Patches:
      chan_unistim_svn.diff uploaded by c (license 460)
Tested by: c_hans


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@114141 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_unistim.c

@@ -513,7 +513,7 @@ const static unsigned char packet_recv_r2[] = { 0x00, 0x00, 0x00, 0x13, 0x96, 0x
 const static unsigned char packet_recv_resume_connection_with_server[] =
 	{ 0xff, 0xff, 0xff, 0xff, 0x9e, 0x03, 0x08 };
 const static unsigned char packet_recv_mac_addr[] =
-	{ 0xff, 0xff, 0xff, 0xff, 0x9a, 0x0d, 0x07, 0x31, 0x38 /*MacAddr */  };
+	{ 0xff, 0xff, 0xff, 0xff, 0x9a, 0x0d, 0x07 /*MacAddr */  };
 
 const static unsigned char packet_send_date_time3[] =
 	{ 0x11, 0x09, 0x02, 0x02, /*Month */ 0x05, /*Day */ 0x06, /*Hour */ 0x07,