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turnip: Move tu_get_device/driver_uuid() to shared code for GL reuse

Eduardo Lima Mitev requested to merge elima/mesa:review/fd/fix-and-factorize-uuids into master

This is warm-up for the EXT_external_objects support we are working on (MR!4565).

EXT_external_objects require driver and device UUIDs reported by Vulkan and GL to match. This patch moves the turnip functions to a common place for reuse.

Following review suggestions, a new folder src/freedreno/common was created and the UUID generation was moved to freedreno_uuid.c/h.

The generated UUIDs have also been updated: device UUID becomes SHA1("freedreno" + gpu_id) and driver UUID becomes SHA1(mesa-version + git-head-sha1).

Edited by Eduardo Lima Mitev

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