pcu: Fix counter expectancies in TC_bssgp_dl_unitdata_with_valid_imsi

Since sending with the network-requested UL CS/MCS was implemented, CS-2
is being used in the test (since it's requested by the network during UL
Imm Ass). We used to send UL blocks with CS-1 prior to that, which means
we are sending a different amount of data, and hence the test
expectancies need to be updated.

Change-Id: Ie7112a96f5f2ca9c5bbd224b6270f55a338d101a
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 3cbc732..565e633 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -2456,7 +2456,7 @@
 		{ name := "TTCN3.bts.0.tbf.dl.alloc", mtype := "c", min := 1, max := 1},
 		{ name := "TTCN3.bts.0.tbf.ul.alloc", mtype := "c", min := 1, max := 1},
 		{ name := "TTCN3.bts.0.rlc.dl_payload_bytes", mtype := "c", min := 28, max := 28},
-		{ name := "TTCN3.bts.0.rlc.ul_payload_bytes", mtype := "c", min := 16, max := 16}
+		{ name := "TTCN3.bts.0.rlc.ul_payload_bytes", mtype := "c", min := 26, max := 26}
 	};
 	f_statsd_expect(expect);