make tests compile again after talloc branch changes
diff --git a/openbsc/tests/channel/Makefile.am b/openbsc/tests/channel/Makefile.am
index 60defe0..5a3477c 100644
--- a/openbsc/tests/channel/Makefile.am
+++ b/openbsc/tests/channel/Makefile.am
@@ -9,6 +9,7 @@
 	$(top_srcdir)/src/debug.c \
 	$(top_srcdir)/src/timer.c \
 	$(top_srcdir)/src/select.c \
+	$(top_srcdir)/src/talloc.c \
 	$(top_srcdir)/src/gsm_data.c
 channel_test_LDADD = -ldl -ldbi