include: reorganize headers file to include/osmocom/[gsm|core]

This patch moves all GSM-specific definitions to include/osmocom/gsm.
Moreover, the headers in include/osmocore/ have been moved to
include/osmocom/core.

This has been proposed by Harald Welte and Sylvain Munaunt.

Tested with `make distcheck'.

Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
diff --git a/tests/msgfile/msgfile_test.c b/tests/msgfile/msgfile_test.c
index a82ac51..4637cea 100644
--- a/tests/msgfile/msgfile_test.c
+++ b/tests/msgfile/msgfile_test.c
@@ -19,7 +19,7 @@
  *
  */
 
-#include <osmocore/msgfile.h>
+#include <osmocom/core/msgfile.h>
 
 #include <stdio.h>
 
diff --git a/tests/sms/sms_test.c b/tests/sms/sms_test.c
index 9d87b5b..f5d82b9 100644
--- a/tests/sms/sms_test.c
+++ b/tests/sms/sms_test.c
@@ -23,9 +23,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
-#include <osmocore/msgb.h>
-#include <osmocore/gsm_utils.h>
-#include <osmocore/utils.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/gsm/gsm_utils.h>
+#include <osmocom/core/utils.h>
 
 struct test_case {
 	const uint8_t *input;
diff --git a/tests/smscb/smscb_test.c b/tests/smscb/smscb_test.c
index 627d5a1..e10e12d 100644
--- a/tests/smscb/smscb_test.c
+++ b/tests/smscb/smscb_test.c
@@ -18,7 +18,7 @@
  *
  */
 
-#include <osmocore/protocol/gsm_03_41.h>
+#include <osmocom/gsm/protocol/gsm_03_41.h>
 
 #include <stdio.h>
 
diff --git a/tests/timer/timer_test.c b/tests/timer/timer_test.c
index 1b458d8..30b08ad 100644
--- a/tests/timer/timer_test.c
+++ b/tests/timer/timer_test.c
@@ -20,8 +20,8 @@
 
 #include <stdio.h>
 
-#include <osmocore/timer.h>
-#include <osmocore/select.h>
+#include <osmocom/core/timer.h>
+#include <osmocom/core/select.h>
 
 #include "../../config.h"
 
diff --git a/tests/ussd/ussd_test.c b/tests/ussd/ussd_test.c
index bddbbcb..6d2a8c9 100644
--- a/tests/ussd/ussd_test.c
+++ b/tests/ussd/ussd_test.c
@@ -19,7 +19,7 @@
  *
  */
 
-#include <osmocore/gsm0480.h>
+#include <osmocom/gsm/gsm0480.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>