fix(cgpt): Fix GUID for 'data' type and add generic Linux GUIDs

For whatever historical reason (perhaps ChromeOS started before the
parted and gptfdisk devs got around to agreeing on a GUID for Linux
data? I dunno.) the 'data' re-used the general data GUID used by
Windows. This is a bit silly, so switch to the correct GUID every other
Linux distro uses these days.

While I'm at it add other general purpose Linux GUIDs.

Clean up the list of partition types printed by cgpt add -h
4 files changed