leds: MAINTAINERS: include dt-bindings headers

Include the Devicetree binding headers in LED SUBSYSTEM entry.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

Author: krzk

MAINTAINERS

@@ -11561,6 +11561,7 @@ S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git
 F:	Documentation/devicetree/bindings/leds/
 F:	drivers/leds/
+F:	include/dt-bindings/leds/
 F:	include/linux/leds.h
 
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