Do not automatically reboot

Rebooting the machine should be handled by the process driving a touchpad
firmware update, not by the updater itself.
Besides, reboot was only performed between gen2 and gen3 firmware versions.
By now, all firmware is gen3, so reboot should never be required.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>

BUG=chromium-os:23065
TEST=Update cyapa firmware from gen2 to gen3.  No automatic resets.
     Also, cyapa_fw_update should not warn about reseting.

Change-Id: I8fa277254fb76cff7e1dedd0de55ac1688564576
1 file changed