bts/BTS_Tests.default: bump default PCUIF version to 11

Without this change I cannot run BTS_Tests manually anymore:

Local verdict of MTC: fail reason:
    "BTS_Tests.ttcn:480 : Invalid PCU Version/BTS Number received"

Change-Id: If0046b44adb93fba7dced1ce06d5ddb9d7c75269
Fixes: 3b4abb86 "BTS_Tests: Add support for PCUIF protocol version 11"
diff --git a/bts/BTS_Tests.default b/bts/BTS_Tests.default
index 0657b65..7c5230b 100644
--- a/bts/BTS_Tests.default
+++ b/bts/BTS_Tests.default
@@ -29,7 +29,7 @@
 
 [MODULE_PARAMETERS]
 Osmocom_VTY_Functions.mp_prompt_prefix := "OsmoBTS";
-PCUIF_Types.mp_pcuif_version := 10;
+PCUIF_Types.mp_pcuif_version := 11;
 
 # Configuration for each individual transceiver
 BTS_Tests.mp_trx_pars := {