input: Save keyboard's LED state to correct place

Currently keyboard's LED state is wrongly saved to config->leds in
process_modifier(). It should really be config->flags.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 954ecec..575f4b6 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -267,7 +267,7 @@
 		if (flip != -1) {
 			int leds = 0;
 
-			config->leds ^= flip;
+			config->flags ^= flip;
 			if (config->flags & FLAG_NUM_LOCK)
 				leds |= INPUT_LED_NUM;
 			if (config->flags & FLAG_CAPS_LOCK)