GSM_Types: Enable sub-slot templating in t_RslChanNr_Lm

Change-Id: I22dca2338ad66c81add5d161bd2a3b3e8e15bdcf
diff --git a/library/GSM_Types.ttcn b/library/GSM_Types.ttcn
index 1efeac8..e1d6b48 100644
--- a/library/GSM_Types.ttcn
+++ b/library/GSM_Types.ttcn
@@ -93,7 +93,7 @@
 	template RslChannelNr t_RslChanNr_PCH_AGCH(template uint3_t tn) := t_RslChanNr0(tn, RSL_CHAN_NR_PCH_AGCH);
 	template RslChannelNr t_RslChanNr_Bm(template uint3_t tn) := t_RslChanNr0(tn, RSL_CHAN_NR_Bm_ACCH);
 	template RslChannelNr t_RslChanNr_PDCH(template uint3_t tn) := t_RslChanNr0(tn, RSL_CHAN_NR_OSMO_PDCH);
-	template RslChannelNr t_RslChanNr_Lm(template uint3_t tn, uint1_t sub_slot) := {
+	template RslChannelNr t_RslChanNr_Lm(template uint3_t tn, template uint1_t sub_slot) := {
 		u := { lm := { tag := '0001'B, sub_chan := sub_slot } },
 		tn := tn
 	}