tf-m-eclair-delta: More logging and license extension

As delta build consists of building to project revisions - target vs
base, need to take care of both of them.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Ic6b84f63147fe165502e933d3abc42cab50d7e1f
1 file changed