config: evb-rk3399: enable pinctrl driver

This patch enable rk3399 pinctrl driver and gpio driver which is sub-node
of pinctrl.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>

configs/evb-rk3399_defconfig

@@ -19,7 +19,9 @@ CONFIG_SYSCON=y
 CONFIG_CLK=y
 CONFIG_ROCKCHIP_DWMMC=y
 CONFIG_ROCKCHIP_SDHCI=y
+CONFIG_ROCKCHIP_GPIO=y
 CONFIG_PINCTRL=y
+CONFIG_ROCKCHIP_RK3399_PINCTRL=y
 CONFIG_RAM=y
 CONFIG_DEBUG_UART=y
 CONFIG_DEBUG_UART_BASE=0xFF1A0000