Convert CONFIG_DM9000_BYTE_SWAPPED et al to Kconfig

This converts the following to Kconfig:
   CONFIG_DM9000_BYTE_SWAPPED
   CONFIG_DM9000_NO_SROM
   CONFIG_DM9000_USE_16BIT
   CONFIG_DM9000_DEBUG
   CONFIG_MXC_GPT_HCLK
   CONFIG_NAND_6BYTES_OOB_FREE_10BYTES_ECC

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/devkit8000_defconfig b/configs/devkit8000_defconfig
index 8347b67..6fd4410 100644
--- a/configs/devkit8000_defconfig
+++ b/configs/devkit8000_defconfig
@@ -84,4 +84,6 @@
 CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
 CONFIG_SYS_NAND_U_BOOT_OFFS=0x80000
 CONFIG_DRIVER_DM9000=y
+CONFIG_DM9000_NO_SROM=y
+CONFIG_DM9000_USE_16BIT=y
 CONFIG_JFFS2_NAND=y