arm64: defconfig: Enable Rockchip HDMI/DP Combo PHY

Enable support for the Rockchip HDMI/DP Combo PHY, which is based on a
Samsung IP block. This is used by the RK3588 SoC family.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 07890b8..ab24a68 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -1490,6 +1490,7 @@
 CONFIG_PHY_ROCKCHIP_INNO_DSIDPHY=m
 CONFIG_PHY_ROCKCHIP_NANENG_COMBO_PHY=m
 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