[trusty/xenial SRU] switch to a signed-only kernel and add buildinfo

[Andy Whitcroft]

On Thu, Jan 31, 2019 at 03:31:28PM +0000, Andy Whitcroft wrote:

> I have done binary comparisons of the package contents for both xenial and
> trusty for the signed-only changes.  I am waiting on test builds with the
> additional buildinfo changes applied to recheck that has not regressed
> package contents.  I will reply to this thread with the results of that
> testing once the builders have ground through them.

The test builds are now complete.  A binary comparison shows that all of
the files still exist in the new packages and appear to be in the
relevant packages.

-apw