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/ctrl/control_if.c b/src/ctrl/control_if.c
index 47efb25..d50ddd0 100644
--- a/src/ctrl/control_if.c
+++ b/src/ctrl/control_if.c
@@ -50,7 +50,7 @@
#include <osmocom/core/msgb.h>
#include <osmocom/core/rate_ctr.h>
#include <osmocom/core/select.h>
-#include <osmocom/core/statistics.h>
+#include <osmocom/core/counter.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/socket.h>