MAINTAINERS: Update HiSilicon GPIO driver maintainer

Add Yang Shen as the maintainer of the HiSilicon GPIO driver,
replacing Jay Fang.

Signed-off-by: Yang Shen <[email protected]>
Reviewed-by: Jay Fang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>

Author: Yang Shen

MAINTAINERS

@@ -10839,7 +10839,7 @@ S:	Maintained
 F:	drivers/dma/hisi_dma.c
 
 HISILICON GPIO DRIVER
-M:	Jay Fang <f.fangjian@huawei.com>
+M:	Yang Shen <shenyang39@huawei.com>
 L:	[email protected]
 S:	Maintained
 F:	Documentation/devicetree/bindings/gpio/hisilicon,ascend910-gpio.yaml