templates: Update .cfg files to use logging level set-all

VTY cmd "logging level all" is deprecated in favour of "logging level
set-all", but the required behaviour in this case is "logging level
set-all".

Change-Id: Ice54fca6be86f05a02ce4ae783e6e42e6958b95d
diff --git a/selftest/template_test/osmo-nitb.cfg.tmpl b/selftest/template_test/osmo-nitb.cfg.tmpl
index f1508ec..c0a5c46 100644
--- a/selftest/template_test/osmo-nitb.cfg.tmpl
+++ b/selftest/template_test/osmo-nitb.cfg.tmpl
@@ -8,7 +8,7 @@
  logging color 0
  logging print category 0
  logging print extended-timestamp 1
- logging level all debug
+ logging level set-all debug
 !
 line vty
  no login