library/L1CTL_Types: relax some params of tr_L1CTL_TRAFFIC_IND()

A TRAFFIC.ind with 'num_biterr' > 0 or 'fire_crc' != 0 is still
a valid TCH frame - Bad Frame Indication.  Let's relax those
parameters for tr_L1CTL_TRAFFIC_IND().

Change-Id: Ia3357e06f986ae59dd0438f9ace3042cae8d3684
Related: OS#4799
diff --git a/library/L1CTL_Types.ttcn b/library/L1CTL_Types.ttcn
index 00503e6..f7592fc 100644
--- a/library/L1CTL_Types.ttcn
+++ b/library/L1CTL_Types.ttcn
@@ -806,8 +806,8 @@
 	template L1ctlDlMessage tr_L1CTL_TRAFFIC_IND(template RslChannelNr chan_nr,
 						     template RslLinkId link_id := ?,
 						     template octetstring frame := ?,
-						     template uint8_t num_biterr := 0,
-						     template uint8_t fire_crc := 0) := {
+						     template uint8_t num_biterr := ?,
+						     template uint8_t fire_crc := ?) := {
 		header := tr_L1ctlHeader(L1CTL_TRAFFIC_IND),
 		dl_info := {
 			chan_nr := chan_nr,