MAINTAINERS: Replace Tien Hock Loh as Altera PIO maintainer

This patch is to replace Tien Hock Loh as Altera PIO maintainer as he
has moved to a different role.

Signed-off-by: Ooi, Joyce <joyce.ooi@intel.com>
Link: https://lore.kernel.org/r/20200103170155.100743-1-joyce.ooi@intel.com


Acked-by: Tien Hock Loh <tien.hock.loh@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>