gsm: Introduce API osmo_gsm48_rest_octets_si13_decode

Related: SYS#5358
Change-Id: I74fb0a3afc1ac4aadbfc609b882d929401f790eb
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 10306aa..158bc69 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -42,6 +42,7 @@
 		 bsslap/bsslap_test					\
 		 bssmap_le/bssmap_le_test				\
 		 it_q/it_q_test						\
+		 gsm48/rest_octets_test					\
 		 $(NULL)
 
 if ENABLE_MSGFILE
@@ -139,6 +140,9 @@
 gsm0408_gsm0408_test_SOURCES = gsm0408/gsm0408_test.c
 gsm0408_gsm0408_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
 
+gsm48_rest_octets_test_SOURCES = gsm48/rest_octets_test.c
+gsm48_rest_octets_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
+
 gprs_gprs_test_SOURCES = gprs/gprs_test.c
 gprs_gprs_test_LDADD = $(LDADD) $(top_builddir)/src/gsm/libosmogsm.la
 
@@ -399,6 +403,7 @@
 	     bsslap/bsslap_test.ok \
 	     bssmap_le/bssmap_le_test.ok \
 	     it_q/it_q_test.ok \
+	     gsm48/rest_octets_test.ok \
 	     $(NULL)
 
 if ENABLE_LIBSCTP