arm64: defconfig: Add Renesas R-Car Gen3 USB 2.0 phy driver support

Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

arch/arm64/configs/defconfig

@@ -213,6 +213,7 @@ CONFIG_QCOM_SMD_RPM=y
 CONFIG_ARCH_TEGRA_132_SOC=y
 CONFIG_ARCH_TEGRA_210_SOC=y
 CONFIG_HISILICON_IRQ_MBIGEN=y
+CONFIG_PHY_RCAR_GEN3_USB2=y
 CONFIG_PHY_XGENE=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y