Rename 'statistics.c' to 'counter.c'
With stat_item, stats.c and stats_statsd.c, it is becoming a bit
difficult to understand file naming. Also, the 'statistics.c' file
actually only contained osmo_counter handling, so let's rename it to
counter.c altogether.
Change-Id: I2cfb2310543902b7da46cb15a76e2da317eaed7d
diff --git a/src/vty/stats_vty.c b/src/vty/stats_vty.c
index a4c73fa..95f04bc 100644
--- a/src/vty/stats_vty.c
+++ b/src/vty/stats_vty.c
@@ -35,7 +35,7 @@
#include <osmocom/vty/misc.h>
#include <osmocom/core/stats.h>
-#include <osmocom/core/statistics.h>
+#include <osmocom/core/counter.h>
#include <osmocom/core/rate_ctr.h>
#define CFG_STATS_STR "Configure stats sub-system\n"