MAINTAINERS: Add Syed Nayyar Waris to ACCES 104-QUAD-8 driver

Add Syed Nayyar Waris as a co-maintainer for the ACCES 104-QUAD-8
counter driver.

Signed-off-by: Syed Nayyar Waris <syednwaris@gmail.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>