imx51-babbage, use sfdisk and switch to stable v3.10.x branch

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

hwpack/imx51-babbage.conf

@@ -15,7 +15,8 @@ boot_fstype="ext2"
 dd_uboot_bs="512"
 dd_uboot_seek="2"
 boot_partition_size="96"
-boot_startmb="2"
+boot_startmb="1"
+use_sfdisk=1
 unset spl_name
 boot_name="u-boot.imx"
 
@@ -43,7 +44,7 @@ conf_uboot_use_uenvcmd=1
 #Kernel:
 #http://rcn-ee.net/deb/wheezy-armhf/LATEST-armv7
 kernel_subarch="armv7"
-kernel_repo="TESTING"
+kernel_repo="STABLE"
 
 usbnet_mem=