Adopt xf86-video-hwcomposer which is for libhybris hwcomposer

[fish4terrisa-MSDSM]

Describe the idea

xf86-video-hwcomposer is used on libhybris based devices to run xorg on top of android's hwcomposer, using libhybris's gl wrapper on top of Android's native driver.
Currently afaik there are two kind of xf86-video-hwcomposer:

1. https://github.com/NotKit/xf86-video-hwcomposer this one is for hwc1(the original libhybris hwc), which need to stop nearly all Android graphic side and need patches on android rom. I believe it's only useful on Android 8 or below since all dependencies are unbuildable on versions above(at least they wont build on Android 13+) It's used in ubuntu touch(I think) and halium.
2. https://github.com/fish4terrisa-MSDSM/xf86-video-hwcomposer this one is a (badly) patched version on top of the original one by me, added support for lindroid's apphwc, aka hwc2(meanwhile lost the compatibility with hwc1 in the process). apphwc is lindroid's attempt to make the linux gui coexist with android gui. It doesnt need much patches on android rom and can actually function on stock rom.
   They're both in unmaintained state(my patch only added support for hwc2, didnt solve any bugs since I know nearly nothing about x11 driver). It's still using MIT-SHM(rely on sysvipc, which may break some vendor drivers and android in some rare cases and may cause bootloop) instead of using DRI3, thus the performance is very poor(only 3x faster than llvmpipe, mesa is a lot faster) even though libhybris's off screen rendering performance is better than mesa.

It should be done because

By adopting this driver and make improvements on it, the user experience of using libhybris with x11 will significantly improve. Also it's the perfect case to show the great advantage x11 has: Even in it's current state, it's possible tp run any x11 apps and compositors as you want on hwcomposer, meanwhile with wayland you'll need heavy modification on each case.

What are the alternatives?

No response

Additional context

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Extra fields

• I have checked the existing New Ideas, RFCs Of The Core Team, Ideas Soon To Be Addressed and Someday Ideas
• I have read the Contributing Guidelines
• I'd like to work on this idea