tools: add snapshot of pack.py tool

This is a snapshot of the pack.py as of uboot-1.0
commit:

1fb1d5910acd0cf3950084b5d10b443af9803a05(ipq40xx:
Write actual file size in nand in case of NOR+NAND boot)

Change-Id: I85a3ffef3a17c0989d315777ff70c8e03114b6b7
Signed-off-by: Rajkumar Ayyasamy <arajkuma@codeaurora.org>
1 file changed