saft: Fix the argument and the return value of get_internal_disk()
The get_internal_disk() doesn't work on ARM platform. The argument should
be a device with a partition and the return value should be a device without
a partition.
BUG=chrome-os-partner:13323
TEST=Run a FAFT test on ARM platform without error.
Change-Id: Ib02df7a277bf17755d96370689255f2bf4a96d2f
Reviewed-on: https://gerrit.chromium.org/gerrit/31850
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
2 files changed
