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/M5253DEMO_defconfig b/configs/M5253DEMO_defconfig
index 581023f..2684ce0 100644
--- a/configs/M5253DEMO_defconfig
+++ b/configs/M5253DEMO_defconfig
@@ -44,4 +44,5 @@
 CONFIG_SYS_MAX_FLASH_SECT=2048
 CONFIG_USE_SYS_MAX_FLASH_BANKS=y
 CONFIG_DRIVER_DM9000=y
+CONFIG_DM9000_BYTE_SWAPPED=y
 CONFIG_MCFUART=y