freedreno/pps: improve interaction with turnip

turnip uses priority 0.  pps should too (actually, it makes sense to do
so regardless of what turnip does).

turnip is not expected to starve pps, but it does with drm-next for
5.20.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18093>

src/freedreno/ds/fd_pps_driver.cc

@@ -438,7 +438,7 @@ FreedrenoDriver::init_perfcnt()
    uint64_t val;
 
    dev = fd_device_new(drm_device.fd);
-   pipe = fd_pipe_new(dev, FD_PIPE_3D);
+   pipe = fd_pipe_new2(dev, FD_PIPE_3D, 0);
    dev_id = fd_pipe_dev_id(pipe);
 
    if (fd_pipe_get_param(pipe, FD_MAX_FREQ, &val)) {