uniphier_{v7, v8}_defconfig: enable SPI driver and sspi command

Compile drivers/spi/uniphier_spi.c and cmd/spi.c

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/uniphier_v7_defconfig b/configs/uniphier_v7_defconfig
index 112234d..3a9290b 100644
--- a/configs/uniphier_v7_defconfig
+++ b/configs/uniphier_v7_defconfig
@@ -23,6 +23,7 @@
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_TFTPPUT=y
 CONFIG_CMD_CACHE=y
@@ -52,6 +53,9 @@
 CONFIG_SPL_NAND_DENALI=y
 CONFIG_DM_ETH=y
 CONFIG_SNI_AVE=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_UNIPHIER_SPI=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y