BugLink: https://bugs.launchpad.net/bugs/1837117

Commit 78f3ac76 ("platform/x86: asus-wmi: Tell the EC the OS will
handle the display off hotkey") causes the backlight to be permanently off
on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
1015BX, Asus EeePC 1025C).

The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL) call added
by that commit is made conditional in this commit and only enabled in
the quirk_entry structs in the asus-nb-wmi driver fixing the broken
display / backlight on various EeePC laptop models.

Cc: João Paulo Rechi Vita <jprvita@endlessm.com>
Fixes: 78f3ac76 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
(backported from commit 1dd93f87)
[PHLin: context adjustment, only add quirks for models existing in X]
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Acked-by: Connor Kuehl <connor.kuehl@canonical.com>
Acked-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>