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
diff --git a/src/gprs_ms_storage.cpp b/src/gprs_ms_storage.cpp
index 6a7f336..c7de6d3 100644
--- a/src/gprs_ms_storage.cpp
+++ b/src/gprs_ms_storage.cpp
@@ -23,7 +23,10 @@
#include "tbf.h"
#include "bts.h"
-#include "gprs_debug.h"
+
+extern "C" {
+ #include <osmocom/core/linuxlist.h>
+}
#define GPRS_UNDEFINED_IMSI "000"