Remove initramfs workaround for u-boot environment.

Early in the dev-4.4 kernel lifetime a workaround was developed when the
fw_setenv command was failing. That issue does not appear with the
current kernel and the workaround can be removed.

Change-Id: I2a0f01f274b7ce76fbd1e80fe901cc86087ee5d8
Signed-off-by: Edward A. James <eajames@us.ibm.com>
diff --git a/meta-ast2400/recipes-bsp/u-boot/files/fw_env.config b/meta-ast2400/recipes-bsp/u-boot/files/fw_env.config
index 978e4d6..78c9466 100644
--- a/meta-ast2400/recipes-bsp/u-boot/files/fw_env.config
+++ b/meta-ast2400/recipes-bsp/u-boot/files/fw_env.config
@@ -13,7 +13,7 @@
 # MTD SPI-dataflash example
 # MTD device name	Device offset	Env. size	Flash sector size	Number of sectors
 #/dev/mtd2		0x00000		0x20000
-/run/fw_env		0x00000		0x20000
+/dev/mtd/u-boot-env	0x00000		0x20000
 #/dev/mtd5		0x4200		0x4200
 #/dev/mtd6		0x4200		0x4200
 
diff --git a/meta-ast2500/recipes-bsp/u-boot/files/fw_env.config b/meta-ast2500/recipes-bsp/u-boot/files/fw_env.config
index 978e4d6..78c9466 100644
--- a/meta-ast2500/recipes-bsp/u-boot/files/fw_env.config
+++ b/meta-ast2500/recipes-bsp/u-boot/files/fw_env.config
@@ -13,7 +13,7 @@
 # MTD SPI-dataflash example
 # MTD device name	Device offset	Env. size	Flash sector size	Number of sectors
 #/dev/mtd2		0x00000		0x20000
-/run/fw_env		0x00000		0x20000
+/dev/mtd/u-boot-env	0x00000		0x20000
 #/dev/mtd5		0x4200		0x4200
 #/dev/mtd6		0x4200		0x4200