Fix BTS location area code assignment in test configuration.

The paging tests expect BTS 0 and 1 in LAC 1, and BTS 2 in LAC 2.
BUt the osmo-bsc configuration file had BTS 1 in LAC 2, and BTS 2 in LAC 1.

Change-Id: I1d6b02fe06116dee59977422bc93bcafcd3aba76
diff --git a/bsc/osmo-bsc.cfg b/bsc/osmo-bsc.cfg
index d97c210..90756a6 100644
--- a/bsc/osmo-bsc.cfg
+++ b/bsc/osmo-bsc.cfg
@@ -176,7 +176,7 @@
   type sysmobts
   band DCS1800
   cell_identity 1
-  location_area_code 2
+  location_area_code 1
   dtx uplink force
   dtx downlink
   base_station_id_code 63
@@ -266,7 +266,7 @@
   type sysmobts
   band DCS1800
   cell_identity 1
-  location_area_code 1
+  location_area_code 2
   dtx uplink force
   dtx downlink
   base_station_id_code 63