Use new libosmovty cpu sched config features

Using the new libosmovty features allow for:
* Setting different cpu-affinity masks for each thread in the process,
  both at startup through .cfg file as well as changing it at runtime.
* Unified VTY interface to change the scheduling policy of the process
  inherited by all osmocom processes enabling the feature.

Depends: libosmocore.git Change-Id If76a4bd2cc7b3c7adf5d84790a944d78be70e10a
Depends: osmo-gsm-masnuals.git Change-Id Icd75769ef630c3fa985fc5e2154d5521689cdd3c

Related: SYS#4986
Change-Id: I3798603779b88ea37da03033cf7737a6e4751d6e

doc/examples/osmo-trx-lms/osmo-trx-limesdr.cfg

@@ -9,13 +9,14 @@ log stderr
 line vty
  no login
 !
+cpu-sched
+ policy rr 18
 trx
  bind-ip 127.0.0.1
  remote-ip 127.0.0.1
  egprs disable
  tx-sps 4
  rx-sps 4
- rt-prio 18
  chan 0
   tx-path BAND1
   rx-path LNAW

doc/examples/osmo-trx-uhd/osmo-trx-limesdr.cfg

@@ -9,13 +9,14 @@ log stderr
 line vty
  no login
 !
+cpu-sched
+ policy rr 18
 trx
  bind-ip 127.0.0.1
  remote-ip 127.0.0.1
  egprs disable
  tx-sps 4
  rx-sps 4
- rt-prio 18
  chan 0
   tx-path BAND1
   rx-path LNAW

doc/examples/osmo-trx-uhd/osmo-trx-umtrx.cfg

@@ -9,6 +9,8 @@ log stderr
 line vty
  no login
 !
+cpu-sched
+ policy rr 18
 trx
  bind-ip 127.0.0.1
  remote-ip 127.0.0.1
@@ -17,6 +19,5 @@ trx
  tx-sps 4
  rx-sps 4
  rssi-offset 38
- rt-prio 18
  chan 0
  chan 1

doc/examples/osmo-trx-uhd/osmo-trx-usrp_b200.cfg

@@ -9,6 +9,8 @@ log stderr
 line vty
  no login
 !
+cpu-sched
+ policy rr 18
 trx
  bind-ip 127.0.0.1
  remote-ip 127.0.0.1
@@ -19,6 +21,4 @@ trx
  tx-sps 4
  rx-sps 4
  clock-ref external
- rt-prio 18
  chan 0
-

doc/manuals/osmotrx-usermanual.adoc

@@ -31,6 +31,8 @@ include::{srcdir}/chapters/trx-backends.adoc[]
 
 include::{srcdir}/chapters/code-architecture.adoc[]
 
+include::./common/chapters/vty_cpu_sched.adoc[]
+
 include::./common/chapters/trx_if.adoc[]
 
 include::./common/chapters/port_numbers.adoc[]