LLC_Templates: Add templates for NULL and DISC

Change-Id: Ia5b350990379bba1677a0c1c99cf37e6651ba84d
diff --git a/library/LLC_Templates.ttcn b/library/LLC_Templates.ttcn
index 024ae0b..b1cdb75 100644
--- a/library/LLC_Templates.ttcn
+++ b/library/LLC_Templates.ttcn
@@ -135,6 +135,19 @@
 				   template (value) BIT1 cr) :=
 	ts_LLC_U('0001'B, p_f, Information_field_U:{dM := ''O}, sapi, cr);
 
+template PDU_LLC tr_LLC_NULL(template BIT1 p_f, template BIT4 sapi, template BIT1 cr) :=
+	tr_LLC_U('0000'B, p_f, Information_field_U:{nULL := ''O}, sapi, cr);
+template (value) PDU_LLC ts_LLC_NULL(template (value) BIT1 p_f, template (value) BIT4 sapi,
+				     template (value) BIT1 cr) :=
+	ts_LLC_U('0000'B, p_f, Information_field_U:{nULL := ''O}, sapi, cr);
+
+template PDU_LLC tr_LLC_DISC(template BIT1 p_f, template BIT4 sapi, template BIT1 cr) :=
+	tr_LLC_U('0100'B, p_f, Information_field_U:{dISC := ''O}, sapi, cr);
+template (value) PDU_LLC ts_LLC_DISC(template (value) BIT1 p_f, template (value) BIT4 sapi,
+				     template (value) BIT1 cr) :=
+	ts_LLC_U('0100'B, p_f, Information_field_U:{dISC := ''O}, sapi, cr);
+
+
 const BIT4 c_LLC_SAPI_LLGMM := '0001'B;
 const BIT4 c_LLC_SAPI_TOM2 := '0010'B;
 const BIT4 c_LLC_SAPI_LL3 := '0011'B;