fix build: move local include dir before sys installed one
diff --git a/src/tests/Makefile.am b/src/tests/Makefile.am
index 1bf50d2..739410b 100644
--- a/src/tests/Makefile.am
+++ b/src/tests/Makefile.am
@@ -1,4 +1,4 @@
-AM_CFLAGS = $(OSMOVTY_CFLAGS) $(OSMOCORE_CFLAGS) $(OSMOGSM_CFLAGS) $(OSMONETIF_CFLAGS) $(ASN1C_CFLAGS) $(OSMOSIGTRAN_CFLAGS) -g -I$(top_srcdir)/src -I$(top_srcdir)/include
+AM_CFLAGS = -g -I$(top_srcdir)/src -I$(top_srcdir)/include $(OSMOVTY_CFLAGS) $(OSMOCORE_CFLAGS) $(OSMOGSM_CFLAGS) $(OSMONETIF_CFLAGS) $(ASN1C_CFLAGS) $(OSMOSIGTRAN_CFLAGS)
COMMON_LIBS = $(OSMOVTY_LIBS) $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(ASN1C_LIBS) $(OSMOSIGTRAN_LIBS) -lsctp