There are already Kconfig options for SPI flash drivers, but we have not moved them from config.h to defconfig files. This commit does this in a batch.
Signed-off-by: Bin Meng
CONFIG_PPC=y CONFIG_MPC85xx=y CONFIG_TARGET_T4240RDB=y CONFIG_SYS_EXTRA_OPTIONS="PPC_T4160" CONFIG_SPI_FLASH=y CONFIG_SPI_FLASH_SST=y CONFIG_NETDEVICES=y CONFIG_E1000=y CONFIG_SYS_NS16550=y CONFIG_FSL_ESPI=y
