arm64: dts: meson: fix g12a buses

Fix apb, cbus, hiu and periph regions which are not aligned
with the documentation and the information provided by Amlogic

Fixes: 9c8c52f7 ("arm64: dts: meson-g12a: add initial g12a s905d2 SoC DT support")
Cc: Jianxin Pan <jianxin.pan@amlogic.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>