rockchip: rk3399-puma: enable full pinctrl driver in Puma defconfig.

This patch enables the full pinctrl driver in the defconfig
for the RK3399-Q7.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>