srsenb_sib.conf.tmpl: increase default T311 value to 10s

this matches the default of Amarisoft eNB so tests can use the same values

Change-Id: Ic81fb6428751305d8b37a25bddb0d018ca6f51f6
diff --git a/src/osmo_gsm_tester/templates/srsenb_sib.conf.tmpl b/src/osmo_gsm_tester/templates/srsenb_sib.conf.tmpl
index 1ce8e96..ecd49e9 100644
--- a/src/osmo_gsm_tester/templates/srsenb_sib.conf.tmpl
+++ b/src/osmo_gsm_tester/templates/srsenb_sib.conf.tmpl
@@ -106,7 +106,7 @@
         t301 = 100;  // in ms
         t310 = 1000; // in ms
         n310 = 1;
-        t311 = 1000; // in ms
+        t311 = 10000; // in ms
         n311 = 1;
     };