The patches need some documentation

[the-r3dacted]

I spent the past few days trying to apply your patches to LineageOS 17.1 for the XZ2C. It took me a while to fix a displays_str error that was already fixed in the 18.0+, by just applying the fix to 17.1 source. All of the patches compile fine after that. The main thing is you should mention is fix-llvm-unwind-warning-and-findUnwindSections.patch, suppress-bool-operation-warning.patch, and update-abi-dumps.patch rely on update-clang.patch. Applying them without the update clang patch will cause issues. You should also mention if there are any optimizations outside of the patches like building parameters or anything. Also, a bit outside the question, but are there any other optimizations not included in the device source for the XZ2C? (Might also try making a XA2 build too) I would also like to try getting Xperia Parts and the Sony camera app, getting the XZ2C build on par with the XZ1C.