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

Fixes: fb0fe922 ("ARM64: dts: meson-gxl: Add pinctrl nodes")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>