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/src/libbsc/abis_rsl.c b/openbsc/src/libbsc/abis_rsl.c
index 9a4dc5b..8cac832 100644
--- a/openbsc/src/libbsc/abis_rsl.c
+++ b/openbsc/src/libbsc/abis_rsl.c
@@ -29,19 +29,19 @@
 
 #include <openbsc/gsm_data.h>
 #include <openbsc/gsm_04_08.h>
-#include <osmocore/gsm_utils.h>
+#include <osmocom/gsm/gsm_utils.h>
 #include <openbsc/abis_rsl.h>
 #include <openbsc/chan_alloc.h>
 #include <openbsc/bsc_rll.h>
 #include <openbsc/debug.h>
-#include <osmocore/tlv.h>
+#include <osmocom/gsm/tlv.h>
 #include <openbsc/paging.h>
 #include <openbsc/signal.h>
 #include <openbsc/meas_rep.h>
 #include <openbsc/rtp_proxy.h>
-#include <osmocore/rsl.h>
+#include <osmocom/gsm/rsl.h>
 
-#include <osmocore/talloc.h>
+#include <osmocom/core/talloc.h>
 
 #define RSL_ALLOC_SIZE		1024
 #define RSL_ALLOC_HEADROOM	128