use new external libosmogb (part of libosmocore.git)
This removes the libgb (GPRS NS/BSSGP) code from the openbsc.git
repository and uses the new version from libosmocore.git instead.
diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am
index 805fb1c..cf34c4c 100644
--- a/openbsc/src/Makefile.am
+++ b/openbsc/src/Makefile.am
@@ -2,7 +2,7 @@
AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(COVERAGE_CFLAGS)
AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(LIBOSMOGSM_LIBS) $(COVERAGE_LDFLAGS)
-SUBDIRS = libcommon libmgcp libbsc libmsc libtrau libctrl osmo-nitb osmo-bsc_mgcp utils ipaccess libgb gprs
+SUBDIRS = libcommon libmgcp libbsc libmsc libtrau libctrl osmo-nitb osmo-bsc_mgcp utils ipaccess gprs
# Conditional modules
if BUILD_NAT