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/spear310_pnor_defconfig b/configs/spear310_pnor_defconfig
index 7b9f7fe..6969644 100644
--- a/configs/spear310_pnor_defconfig
+++ b/configs/spear310_pnor_defconfig
@@ -21,9 +21,12 @@
 CONFIG_ENV_IS_IN_FLASH=y
 CONFIG_SYS_I2C_DW=y
 # CONFIG_MMC is not set
+CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_MTD_DEVICE=y
-CONFIG_MTD_PARTITIONS=y
+CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_SYS_FLASH_PROTECTION=y
+CONFIG_SYS_FLASH_CFI=y
 CONFIG_PHY_GIGE=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_MII=y