freedreno: Generate device-info tables at build time

freedreno: Generate device-info tables at build time

This way we can make the tables const.  At the same time, for a6xx, this
introduces a "sub-generation template" to reduce the copy/paste for
parameters which are keyed to the sub-generation.  It also explicitly
lists every supported GPU, to get rid of duplicate lists of supported
gpus between the device-info and drivers.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11790>