Vulkan 1.4 can only be exposed on a7xx devices due to a number of bumps
in the required limits, including bumping maxDescriptorSets to 7. a7xx
bumped the number of bindless bases from 5 to 8, with one reserved for
the driver.
I've followed what we've already done and exposed a conformanceVersion
of 1.4.0.0 for all a7xx devices, even though I've only submitted
conformance for X1-85. I'm not sure if we want to change this, but at
least for now a618 on Chromebooks and X1-85 on laptops are the only
cases where turnip is being "shipped" to users in some official
capacity, so it shouldn't be a huge deal.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32437>
Connor Abbott
0c55770b3e