Add AXP.OS

[PanderMusubi]

Please consider adding AXP.OS https://axpos.org to https://eylenburg.github.io/android_comparison.htm

[eylenburg]

Hi, I'm generally hesitant to add more Android ROMs as it's lots of upkeep once added and there's so many of them it's hard to tell which one really bring something new to the table or which ones will still be around in a few years. AXP.OS might be one of the more interesting ones as it's based on DivestOS.