Changes

osmo-remsim-test-latest: install client-shell

Fix for failing ttcn3-remsim-test-latest, in osmo-remsim-client.log:
  /bin/sh: 1: osmo-remsim-client-shell: not found

Change-Id: Ia3041ea6f19ebe53e05117806acf88d3f86d4479