armv8: ls2088ardb: Move CONFIG_SPI_FLASH, CONFIG_SPI_FLASH_SPANSION to defconfig

Move CONFIG_SPI_FLASH_SPANSION, CONFIG_SPI_FLASH, to defconfig.
Also disable disable 4K erase size option.

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
3 files changed