pcu: Fix counter expectancies after LLC UI dummy frame fixes in PCU

Recent commit 7d0f9a0ec383fcfca934731bd6979b6be6629c90 in osmo-pcu.git
fixed situation where lots of unneeded LLC UI dummy frames where being
sent. As a result, osmo-pcu correctly counts less dl rlcmac payload
bytes being sent, so we must adjust our test expectancies.

Related: OS#4849
Change-Id: I01c34a0948094b17cc0d67e613cd9b756f78c372
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 0c56348..facaa59 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -1955,7 +1955,7 @@
 		{ name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 0, max := 0},
 		{ name := "TTCN3.bts.0.tbf.dl.alloc", mtype := "c", min := 1, max := 1},
 		{ name := "TTCN3.bts.0.tbf.ul.alloc", mtype := "c", min := 0, max := 0},
-		{ name := "TTCN3.bts.0.rlc.dl_payload_bytes", mtype := "c", min := 112, max := 112},
+		{ name := "TTCN3.bts.0.rlc.dl_payload_bytes", mtype := "c", min := 64, max := 64},
 		{ name := "TTCN3.bts.0.rlc.ul_payload_bytes", mtype := "c", min := 0, max := 0}
 	};
 	f_statsd_expect(expect);
@@ -2495,7 +2495,7 @@
 		{ name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 1, max := 1},
 		{ 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.dl_payload_bytes", mtype := "c", min := 10, max := 10},
 		{ name := "TTCN3.bts.0.rlc.ul_payload_bytes", mtype := "c", min := 26, max := 26}
 	};
 	f_statsd_expect(expect);