Move all jobs from 2c-8g to 2c-2g. The 8g choice was a default from our
Vexhost move. Running a few jobs in the sandbox with 2g, things still
seem to work and run in about the same amount of time.
Change-Id: Icec61e77175f3b872be86bfd610244587ae04f32
Jira: INTPAK-133 Signed-off-by: Daniel Farrell <dfarrell@redhat.com>