ARM: multi_v7_defconfig: Enable Rockchip displayport phy

The displayport phy controls the output of the Analogix displayport
controller on Rockchip SoCs and is therefore one component to enable
veyron devices to use their internal display.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 434f86b1..0192d0a 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -792,6 +792,7 @@
 CONFIG_TI_PIPE3=y
 CONFIG_PHY_BERLIN_USB=y
 CONFIG_PHY_BERLIN_SATA=y
+CONFIG_PHY_ROCKCHIP_DP=m
 CONFIG_PHY_ROCKCHIP_USB=m
 CONFIG_PHY_QCOM_APQ8064_SATA=m
 CONFIG_PHY_MIPHY28LP=y