On HP 250 G1 laptops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.

References: https://bugzilla.kernel.org/show_bug.cgi?id=63111Signed-off-by: NKirill Tkhai <tkhai@yandex.ru>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>