intel/perf: Add intel_perf_free()

There was no function to free resources allocated in intel_perf_config
or it self.
Other callers will be added in separated patches.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29077>

src/intel/perf/intel_perf.c

@@ -1561,3 +1561,9 @@ intel_perf_init_metrics(struct intel_perf_config *perf_cfg,
    if (oa_metrics)
       intel_perf_register_mdapi_oa_query(perf_cfg, devinfo);
 }
+
+void
+intel_perf_free(struct intel_perf_config *perf_cfg)
+{
+   ralloc_free(perf_cfg);
+}

src/intel/perf/intel_perf.h

@@ -532,6 +532,8 @@ intel_perf_new(void *ctx)
    return perf;
 }
 
+void intel_perf_free(struct intel_perf_config *perf_cfg);
+
 /** Whether we have the ability to hold off preemption on a batch so we don't
  * have to look at the OA buffer to subtract unrelated workloads off the
  * values captured through MI_* commands.

src/intel/perf/intel_perf_query_layout.c

@@ -100,6 +100,7 @@ main(int argc, char *argv[])
 
    if (!perf_cfg->i915_query_supported) {
       fprintf(stderr, "No supported queries for platform.\n");
+      intel_perf_free(perf_cfg);
       return EXIT_FAILURE;
    }
 
@@ -133,5 +134,6 @@ main(int argc, char *argv[])
       }
    }
 
+   intel_perf_free(perf_cfg);
    return EXIT_SUCCESS;
 }