Change the maintainer of MediaTek UFS hooks to Peter Wang.

The original maintainer, Stanley Chu, who could previously be reached at
stanley.chu@mediatek.com, has left MediaTek. Update the email address
accordingly and list Stanley as reviewer.

Cc: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com>
Signed-off-by: Stanley Jhu <chu.stanley@gmail.com>
Link: https://lore.kernel.org/r/20231117103810.527-1-chu.stanley@gmail.comSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>