chan_sip: Update links referenced in deprecation notice

The links in the deprecation notice were the shortened
variety but it makes better sense to show the unshortened
links as they're more descriptive.

I.E.
wiki.asterisk.org/wiki/display/AST/Migrating+from+chan_sip+to+res_pjsip
rather than
wiki.asterisk.org/wiki/x/tAHOAQ

Change-Id: If2da5d5243e2d4a6f193b15691d23e7e5a7c57a9

channels/chan_sip.c

@@ -35349,8 +35349,8 @@ static void deprecation_notice(void)
 {
 	ast_log(LOG_WARNING, "chan_sip has no official maintainer and is deprecated.  Migration to\n");
 	ast_log(LOG_WARNING, "chan_pjsip is recommended.  See guides at the Asterisk Wiki:\n");
-	ast_log(LOG_WARNING, "https://wiki.asterisk.org/wiki/x/tAHOAQ\n");
-	ast_log(LOG_WARNING, "https://wiki.asterisk.org/wiki/x/hYCLAQ\n");
+	ast_log(LOG_WARNING, "https://wiki.asterisk.org/wiki/display/AST/Migrating+from+chan_sip+to+res_pjsip\n");
+	ast_log(LOG_WARNING, "https://wiki.asterisk.org/wiki/display/AST/Configuring+res_pjsip\n");
 }
 
 /*! \brief Event callback which indicates we're fully booted */