arm64: defconfig: enable CONFIG_MMC_UNIPHIER

Enable the UniPhier SD controller driver.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm64/configs/defconfig

@@ -530,6 +530,7 @@ CONFIG_MMC_MESON_GX=y
 CONFIG_MMC_SDHCI_MSM=y
 CONFIG_MMC_SPI=y
 CONFIG_MMC_SDHI=y
+CONFIG_MMC_UNIPHIER=y
 CONFIG_MMC_DW=y
 CONFIG_MMC_DW_EXYNOS=y
 CONFIG_MMC_DW_HI3798CV200=y