leds: ktd2692: Make ktd2692_timing variable static

File-scope 'ktd2692_timing' is not used outside of this unit, so make it
static to silence sparse warning:

  leds-ktd2692.c:62:33: warning: symbol 'ktd2692_timing' was not declared. Should it be static?

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260216110441.160155-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>

drivers/leds/flash/leds-ktd2692.c

@@ -59,7 +59,7 @@ struct ktd2692_led_config_data {
 	enum led_brightness max_brightness;
 };
 
-const struct expresswire_timing ktd2692_timing = {
+static const struct expresswire_timing ktd2692_timing = {
 	.poweroff_us = 700,
 	.data_start_us = 10,
 	.end_of_data_low_us = 10,