[msgb] Make it possible to include it directly and from liblaf0rge

* include <sys/types.h> to have a definition of the u_intX_t types
* include "linuxlist.h" via local includes so it can be found from
  the liblaf0rge directory where <openbsc/ does not exit.
1 file changed
tree: c510ae4f8bdd3ab9b5eb687ca1b23e8e7e38e43e
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. rrlp-ephemeris/
  5. wireshark/