arm64: defconfig: enable Rockchip Samsung USBDP PHY

The USBDP Phy is used by RK3588 to handle the Dual-Role USB3
controllers. The Phy also supports Displayport Alt-Mode, but
the necessary DRM driver has not yet been merged.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20240408225109.128953-4-sebastian.reichel@collabora.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/configs/defconfig

@@ -1519,6 +1519,7 @@ CONFIG_PHY_ROCKCHIP_PCIE=m
 CONFIG_PHY_ROCKCHIP_SAMSUNG_HDPTX=m
 CONFIG_PHY_ROCKCHIP_SNPS_PCIE3=y
 CONFIG_PHY_ROCKCHIP_TYPEC=y
+CONFIG_PHY_ROCKCHIP_USBDP=m
 CONFIG_PHY_SAMSUNG_UFS=y
 CONFIG_PHY_UNIPHIER_USB2=y
 CONFIG_PHY_UNIPHIER_USB3=y