ARM64: dts: Fix GXBB periphs pinctrl pull-enable register base

The pull-enable register base was wrongly copied from the meson8b pinctrl node,
but was not used yet.

Fixes: c328666d ("ARM64: dts: amlogic: Add Meson GX dtsi from GXBB")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>