split off osmo-sgsn: remove files, apply build

Change-Id: I5d27ff93e56cd13e0e70edd15e2080201e35e91f
diff --git a/tests/sgsn/Makefile.am b/tests/sgsn/Makefile.am
index ccb8f44..36026dd 100644
--- a/tests/sgsn/Makefile.am
+++ b/tests/sgsn/Makefile.am
@@ -60,7 +60,8 @@
         $(top_builddir)/src/gprs/gprs_sndcp_pcomp.o \
         $(top_builddir)/src/gprs/v42bis.o \
         $(top_builddir)/src/gprs/gprs_sndcp_dcomp.o \
-	$(top_builddir)/src/libcommon/libcommon.a \
+        $(top_builddir)/src/gprs/gsup_client.o \
+        $(top_builddir)/src/gprs/oap_client.o \
 	$(LIBOSMOABIS_LIBS) \
 	$(LIBOSMOCORE_LIBS) \
 	$(LIBOSMOGSM_LIBS) \