TT#47373 Do not execute ngcpcfg_update_perms for 'values/show'

These commands do not perfom dangerous git calls,
at the same time we slowed them down a lot which
causes very slow nightly testing.

Previously:

> root@web01a:/tmp# time ngcpcfg values eventexport.transfer.password
> ...
> real  0m5.505s

With the new changes:

> root@web01a:/tmp# time ngcpcfg values eventexport.transfer.password
> ...
> real	0m0.127s

Change-Id: I937b4522eb8dbe4f91ada57c978ed4183e7e23fd

sbin/ngcpcfg

@@ -135,7 +135,9 @@ fi
 case ${1:-} in
   init-mgmt|\
   init-shared|\
-  initialise)
+  initialise|\
+  show|\
+  values)
     action "$@"
     ;;
   apply|\
@@ -150,9 +152,7 @@ case ${1:-} in
   pull|\
   push|\
   services|\
-  show|\
   status|\
-  values|\
   set|\
   del|\
   patch)