generic: revert broken LED core patch

The patch breaks LED operation and has already been reverted in 4.4.121.
4.9.87 is still affected; revert it locally until the issue is sorted out
upstream.

Signed-off-by: Matthias Schiffer <[email protected]>

target/linux/generic/pending-4.9/210-Revert-led-core-Fix-brightness-setting-when-setting-.patch

@@ -0,0 +1,26 @@
+From: Matthias Schiffer <[email protected]>
+Date: Sat, 17 Mar 2018 16:53:21 +0100
+Subject: [PATCH] Revert "led: core: Fix brightness setting when setting
+ delay_off=0"
+
+This reverts commit 86b9fa2190907f4f550d9d6bf490c5f89ca33836.
+---
+ drivers/leds/led-core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
+index d70d4a5273b8..3bce44893021 100644
+--- a/drivers/leds/led-core.c
++++ b/drivers/leds/led-core.c
+@@ -186,7 +186,7 @@ void led_blink_set(struct led_classdev *led_cdev,
+ 		   unsigned long *delay_on,
+ 		   unsigned long *delay_off)
+ {
+-	led_stop_software_blink(led_cdev);
++	del_timer_sync(&led_cdev->blink_timer);
+ 
+ 	led_cdev->flags &= ~LED_BLINK_ONESHOT;
+ 	led_cdev->flags &= ~LED_BLINK_ONESHOT_STOP;
+-- 
+2.16.2
+