vty: Introduce support to set cpu-affinity and scheduler policy

Process willing to support this kind of configuration through VTY simply
need to call "osmo_sched_vty_init(tall_ctx);" during startup to register
the commands.
For multithreaded processes, new threads willing to get their
cpu-affinity mask according to VTY config should call
osmo_sched_vty_apply_localthread() (potentially after
setting the thread name through pthread_setname_np()).

Related: SYS#4986
Change-Id: If76a4bd2cc7b3c7adf5d84790a944d78be70e10a
diff --git a/include/Makefile.am b/include/Makefile.am
index 7af7e01..b0a72bc 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -164,6 +164,7 @@
                           osmocom/vty/vector.h \
                           osmocom/vty/vty.h \
                           osmocom/vty/ports.h \
+                          osmocom/vty/cpu_sched_vty.h \
                           osmocom/vty/tdef_vty.h \
                           osmocom/ctrl/control_vty.h
 endif