This converts the following to Kconfig: CONFIG_SYS_CORTINA_FW_IN_MMC CONFIG_SYS_CORTINA_FW_IN_NAND CONFIG_SYS_CORTINA_FW_IN_NOR CONFIG_SYS_CORTINA_FW_IN_REMOTE CONFIG_SYS_CORTINA_FW_IN_SPIFLASH Signed-off-by: Tom Rini <trini@konsulko.com>