MAINTAINERS: Add entry for RDA Micro GPIO driver and binding

Add MAINTAINERS entry for RDA Micro GPIO driver and devicetree binding.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20191021064413.19840-5-manivannan.sadhasivam@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 296de2b..d33ad83 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2150,9 +2150,11 @@
 S:	Maintained
 F:	arch/arm/boot/dts/rda8810pl-*
 F:	drivers/clocksource/timer-rda.c
+F:	drivers/gpio/gpio-rda.c
 F:	drivers/irqchip/irq-rda-intc.c
 F:	drivers/tty/serial/rda-uart.c
 F:	Documentation/devicetree/bindings/arm/rda.yaml
+F:	Documentation/devicetree/bindings/gpio/gpio-rda.yaml
 F:	Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt
 F:	Documentation/devicetree/bindings/serial/rda,8810pl-uart.txt
 F:	Documentation/devicetree/bindings/timer/rda,8810pl-timer.txt