Update sdc merge job to use 8c X 8g system

The sdc-master-merge-java job seems to be hitting possible memory issues
and failing. This increases the build node instance to take that out of
the troubleshooting.

Change-Id: Ia1d437e62063eba2c3401de5417209c9e961996e
Signed-off-by: Andrew Grimberg <agrimberg@linuxfoundation.org>
1 file changed