kernel: pull the actual kernel download and extract into an operation

Pull the actual kernel download and extract into its own operation.
Make this recorded so that we can see failures from it in the job log.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>


git-svn-id: http://test.kernel.org/svn/autotest/trunk@953 592f7852-d20e-0410-864c-8624ca9c26a4
1 file changed