kernelinstall: Make kernelinstall test script works for rhel guest.

RHEL guest is different from fedora guest.
This patch make kernelinstall works for rhel guest.

This patch also correct import link.

Signed-off-by: Feng Yang <fyang@redhat.com>
Merge pull request #11 from FengYang/kernelinstall

kernelinstall: Make kernelinstall test script works for rhel guest.