Cleaning up two existing checkpatch errors (and 2 warnings) in
device_sysfs.c since the file is being changed.

The change in acpi_device_setup_files() is changing spaces to a tab.
Signed-off-by: NBetty Dall <betty.dall@hpe.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>