release tools: update the tools for recognize dtb

Signed-off-by: Royce Jiang <jiangxd@embedinfo.com>
mmc boot: add partitions for system and data

make system and data partitions, init will mount the mmc partition
while boot. This need the init.rc to be changed accordingly
bootlogo: copy 480*272 bootlogo for PDA DM

copy the rle file to root/system. when PDA boot up, copy it to rootfs
then init will load it to display on LCD

Signed-off-by: Royce Jiang <jiangxd@embedinfo.com>
add drmservice and change the dpi

Signed-off-by: Royce Jiang <jiangxd@embedinfo.com>
replace the init logo file with Atmel new Logo
sd image: update the image tool for SD card

Check the sd card status beforce format. Add --force option if user
is sure to remove the files generated by script.Fix warning message

Signed-off-by: Royce Jiang <jiangxd@embedinfo.com>
release tools: update the the release tools for SD and UBI

sd: remove the choose hardware codes, we can detect hardware by atboot now.
    use ext4 filesystem instead of ext2
ubi: update the ubi config file, patches are from atmel team

Signed-off-by: Royce Jiang <jiangxd@embedinfo.com>