Comment 0 for bug 1876882

[Impact]

These are needed for 18.04.5 images.

[Test case]

Boot a daily image, see that it still has the necessary stack installed and working.

Check upgrade from stock bionic.

[Regression potential]

libdrm: very minimal chance for regressions

llvm-10: a new package, no regression potential on it's own

libclc: more or less just adds support for new llvm

mesa: a new major release, but we'll pull the final stable release of 20.0.x series, so there shouldn't be any regressions left at that point

xserver: a new point-release

xorg drivers: modest updates, if any

[Other info]