Rename reg-names to upstream linux format. Upstream linux drop the
"_base". To make use of upstream DTSI, align to the upstream naming.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Weijie Gao <weijie.gao@mediatek.com>
Tested-by: Weijie Gao <weijie.gao@mediatek.com>