gptfdisk: bump to version 1.0.3

gptfdisk: bump to version 1.0.3

This version has a new command line argument to sgdisk, -j, that lets one
change the starting address of where the GPT partition table entries are
stored.

The iMX SoC ROM loader, and perhaps others, expects the bootloader to start
at sector 2.  Using this option with gptfdisk lets the table entries move
to make space for the bootloader image.

Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>