arm64: defconfig: Enable Exynos UFS driver

Enable the Exynos UFS controller and PHY configs. They need to be
buildin to ensure UFS devices gets detected on exynos7 and its
variant boards.
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20210531170057.7730-1-alim.akhtar@samsung.comSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

arch/arm64/configs/defconfig

@@ -289,6 +289,7 @@ CONFIG_SCSI_UFSHCD=y
 CONFIG_SCSI_UFSHCD_PLATFORM=y
 CONFIG_SCSI_UFS_QCOM=m
 CONFIG_SCSI_UFS_HISI=y
+CONFIG_SCSI_UFS_EXYNOS=y
 CONFIG_ATA=y
 CONFIG_SATA_AHCI=y
 CONFIG_SATA_AHCI_PLATFORM=y
@@ -1110,6 +1111,7 @@ CONFIG_PHY_ROCKCHIP_INNO_USB2=y
 CONFIG_PHY_ROCKCHIP_INNO_DSIDPHY=m
 CONFIG_PHY_ROCKCHIP_PCIE=m
 CONFIG_PHY_ROCKCHIP_TYPEC=y
+CONFIG_PHY_SAMSUNG_UFS=y
 CONFIG_PHY_UNIPHIER_USB2=y
 CONFIG_PHY_UNIPHIER_USB3=y
 CONFIG_PHY_TEGRA_XUSB=y