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/chan_alloc.c b/openbsc/src/libbsc/chan_alloc.c
index 167381b..f12e21b 100644
--- a/openbsc/src/libbsc/chan_alloc.c
+++ b/openbsc/src/libbsc/chan_alloc.c
@@ -32,7 +32,7 @@
 #include <openbsc/debug.h>
 #include <openbsc/signal.h>
 
-#include <osmocore/talloc.h>
+#include <osmocom/core/talloc.h>
 
 static int ts_is_usable(struct gsm_bts_trx_ts *ts)
 {