Convert CONFIG_FLASH_CFI_DRIVER et al to Kconfig

This converts the following to Kconfig:
   CONFIG_FLASH_CFI_DRIVER
   CONFIG_SYS_FLASH_USE_BUFFER_WRITE
   CONFIG_FLASH_CFI_MTD
   CONFIG_SYS_FLASH_PROTECTION
   CONFIG_SYS_FLASH_CFI

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Re-migrate]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/P1021RDB-PC_SDCARD_defconfig b/configs/P1021RDB-PC_SDCARD_defconfig
index 0982787..815f435 100644
--- a/configs/P1021RDB-PC_SDCARD_defconfig
+++ b/configs/P1021RDB-PC_SDCARD_defconfig
@@ -41,8 +41,12 @@
 CONFIG_MTDPARTS_DEFAULT="mtdparts=ef000000.nor:256k(vsc7385-firmware),256k(dtb),4608k(kernel),9728k(fs),256k(qe-ucode-firmware),1280k(u-boot)"
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_FSL_ESDHC=y
-CONFIG_MTD_NOR_FLASH=y
 CONFIG_MTD_PARTITIONS=y
+CONFIG_MTD_NOR_FLASH=y
+CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_FLASH_CFI_MTD=y
+CONFIG_SYS_FLASH_CFI=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_PHY_MARVELL=y