Reorder defconfigs with 'savedefconfig'

Some boards' defconfigs are disordered. Reorder them.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/configs/at91sam9g20ek_nandflash_defconfig b/configs/at91sam9g20ek_nandflash_defconfig
index f247084..8bc3fee 100644
--- a/configs/at91sam9g20ek_nandflash_defconfig
+++ b/configs/at91sam9g20ek_nandflash_defconfig
@@ -2,6 +2,7 @@
 CONFIG_ARCH_AT91=y
 CONFIG_TARGET_AT91SAM9260EK=y
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9G20,SYS_USE_NANDFLASH"
+CONFIG_SYS_PROMPT="U-Boot> "
 # CONFIG_CMD_BDI is not set
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
@@ -9,4 +10,3 @@
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
-CONFIG_SYS_PROMPT="U-Boot> "