intel/perf: move registers to their own header

Will conflict with the genxml RPSTAT register.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>

src/intel/perf/gen_perf.c

@@ -33,6 +33,7 @@
 
 #include "common/gen_gem.h"
 #include "gen_perf.h"
+#include "gen_perf_regs.h"
 #include "perf/gen_perf_mdapi.h"
 #include "perf/gen_perf_metrics.h"