build-appliance-image: Bump SRCREV
With the pending point release for denzil we need to point
to the release revision and the correct branch.
(From OE-Core rev: 0a9e8bf35afd5990c1b586bba5eb68f643458a4b)
Signed-off-by: Elizabeth Flanagan <elizabeth.flanagan@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>