Fix build of bsc-nat and GPRS code after include path change

The last patch changed the osmocore include paths, this fixes some build
problems caused by it
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_api.c b/openbsc/src/osmo-bsc/osmo_bsc_api.c
index aead4c8..a943a0c 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_api.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_api.c
@@ -21,8 +21,8 @@
 #include <openbsc/osmo_msc_data.h>
 #include <openbsc/debug.h>
 
-#include <osmocom/core/protocol/gsm_08_08.h>
-#include <osmocom/core/gsm0808.h>
+#include <osmocom/gsm/protocol/gsm_08_08.h>
+#include <osmocom/gsm/gsm0808.h>
 
 #define return_when_not_connected(conn) \
 	if (!conn->sccp_con) {\
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_bssap.c b/openbsc/src/osmo-bsc/osmo_bsc_bssap.c
index f9dc79a..5046d8c 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_bssap.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_bssap.c
@@ -26,8 +26,8 @@
 #include <openbsc/mgcp.h>
 #include <openbsc/paging.h>
 
-#include <osmocom/core/gsm0808.h>
-#include <osmocom/core/protocol/gsm_08_08.h>
+#include <osmocom/gsm/protocol/gsm_08_08.h>
+#include <osmocom/gsm/gsm0808.h>
 
 #include <arpa/inet.h>
 
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_msc.c b/openbsc/src/osmo-bsc/osmo_bsc_msc.c
index 530171e..135779e 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_msc.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_msc.c
@@ -27,7 +27,7 @@
 #include <openbsc/osmo_msc_data.h>
 #include <openbsc/signal.h>
 
-#include <osmocom/core/gsm0808.h>
+#include <osmocom/gsm/gsm0808.h>
 
 #include <osmocom/sccp/sccp.h>
 
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_rf.c b/openbsc/src/osmo-bsc/osmo_bsc_rf.c
index 6be9625..eb4b867 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_rf.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_rf.c
@@ -27,7 +27,7 @@
 #include <openbsc/osmo_msc_data.h>
 
 #include <osmocom/core/talloc.h>
-#include <osmocom/core/protocol/gsm_12_21.h>
+#include <osmocom/gsm/protocol/gsm_12_21.h>
 
 #include <sys/socket.h>
 #include <sys/un.h>
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c b/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
index bbe4ea5..718f305 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
@@ -27,9 +27,9 @@
 #include <openbsc/ipaccess.h>
 #include <openbsc/signal.h>
 
-#include <osmocom/core/gsm0808.h>
 #include <osmocom/core/talloc.h>
-#include <osmocom/core/protocol/gsm_08_08.h>
+#include <osmocom/gsm/gsm0808.h>
+#include <osmocom/gsm/protocol/gsm_08_08.h>
 
 #include <osmocom/sccp/sccp.h>