The change to enable the remote outputs later than local ones, means
we need to make sure we still have a black surface installed for the
remoting output.
Bug-AGL: SPEC-3280
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ia77a583e12872c1eac8290a5c2c573584e34f30f