Include missing headers for osmo_init_logging2

Fixes implicit declaration warning messages at compile time.

Change-Id: I753ed49cdcbd1301ba7ea38dcea9113d99fecb06

src/osmo-bts-omldummy/main.c

@@ -1,5 +1,6 @@
 
 #include <osmocom/core/talloc.h>
+#include <osmocom/core/application.h>
 #include <osmo-bts/logging.h>
 #include <osmo-bts/abis.h>
 #include <osmo-bts/bts.h>

tests/agch/agch_test.c

@@ -20,6 +20,7 @@
  *
  */
 #include <osmocom/core/talloc.h>
+#include <osmocom/core/application.h>
 
 #include <osmo-bts/bts.h>
 #include <osmo-bts/logging.h>

tests/cipher/cipher_test.c

@@ -23,6 +23,7 @@
 #include <osmo-bts/gsm_data.h>
 
 #include <osmocom/core/talloc.h>
+#include <osmocom/core/application.h>
 
 #include <errno.h>
 #include <unistd.h>

tests/paging/paging_test.c

@@ -19,6 +19,7 @@
  *
  */
 #include <osmocom/core/talloc.h>
+#include <osmocom/core/application.h>
 
 #include <osmo-bts/bts.h>
 #include <osmo-bts/logging.h>