Update header includes

Many files include unnecessary headers and don't include headers which
are actually used. Because of that combined with the fact that OsmoPCU
is a mixture of C and C++, it makes it hard to modularize code. Fix
this (using iwyu [1] tool):

* add missing headers
* remove unused headers

[1] https://include-what-you-use.org/

Related: OS#1539
Change-Id: I8c9f488a43b099c72b2d30d3245e7ba50872fc00

1 files changed, 6 insertions, 3 deletions

diff --git a/src/tbf.h b/src/tbf.h
index 2ed63f97..239b8fdc 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -20,20 +20,23 @@
 
 #ifdef __cplusplus
 
-#include "gprs_rlcmac.h"
 #include "llc.h"
 #include "rlc.h"
 #include "cxx_linuxlist.h"
 #include <gprs_debug.h>
-
+#include <gprs_coding_scheme.h>
+#include <gsm_timer.h>
 #include <stdint.h>
 extern "C" {
 #include <osmocom/core/utils.h>
+	#include <osmocom/core/linuxlist.h>
+	#include <osmocom/core/logging.h>
+	#include <osmocom/core/timer.h>
 }
 
 struct bssgp_bvc_ctx;
-struct pcu_l1_meas;
 class GprsMs;
+struct gprs_rlcmac_bts;
 
 /*
  * TBF instance