anv: switch khr perf query code to use query layout

anv: switch khr perf query code to use query layout

This unifies performance data gathering between the GL & Vulkan
drivers.

v2: Also move all NOOPs to before the query, leaving none inside

v3: Capture the query beging registers in reverse order to ensure
    timestamp is as close as possible from measured draw call.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6518>