MAINTAINERS: add an entry for MediaTek

This patch adds an entry for MediaTek.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index abdb6dc..214629e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -158,6 +158,26 @@
 F:	arch/arm/cpu/pxa/
 F:	arch/arm/include/asm/arch-pxa/
 
+ARM MEDIATEK
+M:	Ryder Lee <ryder.lee@mediatek.com>
+M:	Weijie Gao <weijie.gao@mediatek.com>
+S:	Maintained
+F:	arch/arm/mach-mediatek/
+F:	arch/arm/include/asm/arch-mediatek/
+F:	board/mediatek/
+F:	doc/README.mediatek
+F:	drivers/clk/mediatek/
+F:	drivers/mmc/mtk-sd.c
+F:	drivers/pinctrl/mediatek/
+F:	drivers/power/domain/mtk-power-domain.c
+F:	drivers/ram/mediatek/
+F:	drivers/spi/mtk_qspi.c
+F:	drivers/timer/mtk_timer.c
+F:	drivers/watchdog/mtk_wdt.c
+F:	tools/mtk_image.c
+F:	tools/mtk_image.h
+N:	mediatek
+
 ARM OWL
 M:	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 S:	Maintained