drm/i915: Dell Chromebook 11 has PWM backlight

Add quirk for Dell Chromebook 11 backlight.
Reported-and-tested-by: NOwen Garland <garland.owen@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=93451Acked-by: NDamien Lespiau <damien.lespiau@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: NJani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/intel_display.c

@@ -13105,6 +13105,9 @@ static struct intel_quirk intel_quirks[] = {
 
 	/* HP Chromebook 14 (Celeron 2955U) */
 	{ 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
+
+	/* Dell Chromebook 11 */
+	{ 0x0a06, 0x1028, 0x0a35, quirk_backlight_present },
 };
 
 static void intel_init_quirks(struct drm_device *dev)