Convert CONFIG_BOOTP_BOOTPATH et al to Kconfig

This converts the following to Kconfig:
   CONFIG_BOOTP_BOOTPATH
   CONFIG_BOOTP_DNS
   CONFIG_BOOTP_GATEWAY
   CONFIG_BOOTP_HOSTNAME
   CONFIG_BOOTP_PXE
   CONFIG_BOOTP_SUBNETMASK
   CONFIG_CMDLINE_EDITING
   CONFIG_AUTO_COMPLETE
   CONFIG_SYS_LONGHELP
   CONFIG_SUPPORT_RAW_INITRD
   CONFIG_ENV_VARS_UBOOT_CONFIG

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Re-run the migration]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/at91sam9g20ek_2mmc_defconfig b/configs/at91sam9g20ek_2mmc_defconfig
index 2313c7e..c9ef79b 100644
--- a/configs/at91sam9g20ek_2mmc_defconfig
+++ b/configs/at91sam9g20ek_2mmc_defconfig
@@ -26,6 +26,9 @@
 CONFIG_CMD_FAT=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_MMC=y
+CONFIG_BOOTP_BOOTPATH=y
+CONFIG_BOOTP_GATEWAY=y
+CONFIG_BOOTP_HOSTNAME=y
 CONFIG_DM=y
 CONFIG_CLK=y
 CONFIG_CLK_AT91=y