src: use new library libosmogsm and new path to headers in libosmocore

libosmogsm is a new library that is distributed in the libosmocore.
Now, openbsc depends on it. This patch gets openbsc with this
change.

This patch also rewrites all include path to the new
osmocom/[gsm|core]

Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
diff --git a/openbsc/tests/gsm0408/Makefile.am b/openbsc/tests/gsm0408/Makefile.am
index de6feb2..90ca05b 100644
--- a/openbsc/tests/gsm0408/Makefile.am
+++ b/openbsc/tests/gsm0408/Makefile.am
@@ -1,9 +1,9 @@
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS)
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS)
 noinst_PROGRAMS = gsm0408_test
 
 gsm0408_test_SOURCES = gsm0408_test.c
 gsm0408_test_LDADD =	$(top_builddir)/src/libbsc/libbsc.a \
 			$(top_builddir)/src/libmsc/libmsc.a \
 			$(top_builddir)/src/libbsc/libbsc.a \
-			$(LIBOSMOCORE_LIBS) -ldbi
+			$(LIBOSMOCORE_LIBS) $(LIBOSMOGSM_LIBS) -ldbi