vty: join UL/DL SACCH repetition commands together

Both commands are basically doing the same thing, so we can merge
them into a single command by adding a parameter to the command
string.  The VTY syntax remains the same:

  do-something foo
  do-something bar

becomes:

  do-something (foo|bar)

This change reduces code duplication.

Change-Id: Ibe98718d8f4933926eed0e622109c9c82537f526
Related: SYS#5114
1 file changed