Update FatFs to R0.15a-p1

packer: sync xz sources from Swiss

iplboot r9.1

iplboot r9

Upload Qoob SX artifacts

Add note about CLI files in README

Build gci for game exploits

Back to -O2

-Os breaks booting from flash

Customize version string in the Qoob SX updater

Use -Os and dolxz

Trim the last few bytes off to fit within the Qoob SX updater.

Most likely requires a custom dolxz build using clang and -Os.