enhance the test flexibility for auto-test

Some operations in the procedure of creating guest image
can be done automatically. Such as copying simple_process
and page-types tool into guest image.

Another update is about public/private keys. The original usage
maybe breaks the path relationship because user can set
public/private key file path indepently without HOST_DIR involved.
But these setting is useless, so delete these options.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
3 files changed