arm: socfpga: Enable simple bus in SPL on all boards

The simple bus support must be enabled in SPL, otherwise the boards
will not be able to parse the DT and will fail to boot.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>

configs/socfpga_arria5_defconfig

@@ -11,6 +11,7 @@ CONFIG_SPL_STACK_R=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_GPIO=y
+CONFIG_SPL_SIMPLE_BUS=y
 CONFIG_DWAPB_GPIO=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_SPANSION=y

configs/socfpga_cyclone5_defconfig

@@ -11,6 +11,7 @@ CONFIG_SPL_STACK_R=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_GPIO=y
+CONFIG_SPL_SIMPLE_BUS=y
 CONFIG_DWAPB_GPIO=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_SPANSION=y