anv: re-enable RT data in INTEL_MEASURE

Per-RenderTarget analysis was removed from anv's INTEL_MEASURE
previously, probably after switching to dynamic rendering model.
Restore capability by tracking count of beginRenderPass calls.

Reviewed-by: Mark Janes <markjanes@swizzler.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22723>

src/intel/common/intel_measure.c

@@ -225,6 +225,7 @@ intel_measure_init(struct intel_measure_device *device)
 
    device->config = NULL;
    device->frame = 0;
+   device->render_pass_count = 0;
    device->release_batch = NULL;
    pthread_mutex_init(&device->mutex, NULL);
    list_inithead(&device->queued_snapshots);

src/intel/common/intel_measure.h

@@ -134,6 +134,7 @@ typedef void (*intel_measure_release_batch_cb)(struct intel_measure_batch *base)
 struct intel_measure_device {
    struct intel_measure_config *config;
    unsigned frame;
+   unsigned render_pass_count;
    intel_measure_release_batch_cb release_batch;
 
    /* Holds the list of (iris/anv)_measure_batch snapshots that have been