iris: separating out common perf code

The configuration of the gen_perf vtable will be the same for
INTEL_performance_query and AMD_performance_monitor.
Initialize the table in a single routine that can be called from both
implementations.

Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
5 files changed