bump(sys-kernel/coreos-kernel): bump to 3.10.5
feat(eclass/cros-kernel): add hardware support

add some more hadware support
fix(eclass/cros-workon): revert EGIT_BRANCH hack

this hack didn't seem to work and with the removal of sync-c in the
manifest make it all a moot point anyways
Merge pull request #151 from philips/bump-kernel-to-3.10.5

bump(sys-kernel/coreos-kernel): bump to 3.10.5