ARM: uniphier: add uniphier_v8_defconfig

This defconfig does not support SPL.  If you use this, the basic
SoC initialization must be done in firmware that runs before U-Boot.
(Generally, ARM Trusted Firmware is expected to do this job).

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

configs/uniphier_v8_defconfig

+CONFIG_ARM=y
+CONFIG_ARCH_UNIPHIER=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_ARCH_UNIPHIER_V8_MULTI=y
+CONFIG_MICRO_SUPPORT_CARD=y
+CONFIG_SYS_TEXT_BASE=0x84000000
+CONFIG_DEFAULT_DEVICE_TREE="uniphier-ld20-ref"
+# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_FPGA is not set
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_TFTPPUT=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIME=y
+# CONFIG_CMD_MISC is not set
+CONFIG_CMD_FAT=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_GPIO_UNIPHIER=y
+CONFIG_MISC=y
+CONFIG_I2C_EEPROM=y
+CONFIG_MMC_UNIPHIER=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_CADENCE=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_STORAGE=y