ARM: uniphier: merge two defconfig files into uniphier_v7_defconfig

The main difference between Pro4 and PXs2/LD6b is the Denali NAND
IP version.  This is now distinguished by DT.  Merge the two defconfig
files into uniphier_v7_defconfig.

Update the README.uniphier too.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/uniphier_pxs2_ld6b_defconfig b/configs/uniphier_pxs2_ld6b_defconfig
deleted file mode 100644
index c242776..0000000
--- a/configs/uniphier_pxs2_ld6b_defconfig
+++ /dev/null
@@ -1,48 +0,0 @@
-CONFIG_ARM=y
-CONFIG_ARCH_UNIPHIER=y
-CONFIG_SYS_TEXT_BASE=0x84000000
-CONFIG_SYS_MALLOC_F_LEN=0x2000
-CONFIG_SPL_MMC_SUPPORT=y
-CONFIG_SPL_SERIAL_SUPPORT=y
-CONFIG_SPL_NAND_SUPPORT=y
-CONFIG_ARCH_UNIPHIER_PRO5_PXS2_LD6B=y
-CONFIG_MICRO_SUPPORT_CARD=y
-CONFIG_DEFAULT_DEVICE_TREE="uniphier-pxs2-vodka"
-# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
-CONFIG_SPL=y
-CONFIG_SPL_NOR_SUPPORT=y
-CONFIG_HUSH_PARSER=y
-CONFIG_CMD_CONFIG=y
-CONFIG_CMD_BOOTZ=y
-# CONFIG_CMD_XIMG is not set
-# CONFIG_CMD_ENV_EXISTS is not set
-# CONFIG_CMD_FPGA is not set
-CONFIG_CMD_GPIO=y
-CONFIG_CMD_GPT=y
-CONFIG_CMD_I2C=y
-CONFIG_CMD_MMC=y
-CONFIG_CMD_USB=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_CMD_FS_GENERIC=y
-# CONFIG_SPL_DOS_PARTITION is not set
-# CONFIG_SPL_EFI_PARTITION is not set
-CONFIG_NET_RANDOM_ETHADDR=y
-CONFIG_GPIO_UNIPHIER=y
-CONFIG_MISC=y
-CONFIG_I2C_EEPROM=y
-CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=10
-CONFIG_MMC_UNIPHIER=y
-CONFIG_NAND=y
-CONFIG_NAND_DENALI=y
-CONFIG_NAND_DENALI_DT=y
-CONFIG_SYS_NAND_DENALI_64BIT=y
-CONFIG_NAND_DENALI_SPARE_AREA_SKIP_BYTES=8
-CONFIG_SPL_NAND_DENALI=y
-CONFIG_USB=y
-CONFIG_USB_XHCI_HCD=y
-CONFIG_USB_STORAGE=y
diff --git a/configs/uniphier_pro4_defconfig b/configs/uniphier_v7_defconfig
similarity index 93%
rename from configs/uniphier_pro4_defconfig
rename to configs/uniphier_v7_defconfig
index 7348675..3c25484 100644
--- a/configs/uniphier_pro4_defconfig
+++ b/configs/uniphier_v7_defconfig
@@ -5,8 +5,9 @@
 CONFIG_SPL_MMC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL_NAND_SUPPORT=y
+CONFIG_ARCH_UNIPHIER_V7_MULTI=y
 CONFIG_MICRO_SUPPORT_CARD=y
-CONFIG_DEFAULT_DEVICE_TREE="uniphier-pro4-ref"
+CONFIG_DEFAULT_DEVICE_TREE="uniphier-pxs2-vodka"
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_SPL=y
 CONFIG_SPL_NOR_SUPPORT=y