cros_installer: Temporarily return success for EFI installation.

Although EFI is not fully supported yet, we don't want it to return failure for
factory installation.

BUG=none
TEST=emerge-x86_generic chromeos-installer

Change-Id: I5f1387432ac6ed556dcf1a1da8d2a55bdca1a993
Reviewed-on: https://gerrit.chromium.org/gerrit/28557
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
1 file changed