Always start jack server before first call to jack

Also install and update the server if necessary.

The target setup-jack-server produces no file so it's always built.
Since the dependency is "order only", it doesn't cause force rebuilt of
jack targets after start-jack-server execution.

Bug: 25443108

Change-Id: I96282265d5ababb58b74ad3c5bd28fca3aa609f1