drm/i915/psr: Get Early Transport status in intel_psr_pipe_get_config

We are currently not getting Early Transport status information in
intel_psr_pipe_get_config. Fix this.
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Fixes: 467e4e06 ("drm/i915/psr: Enable psr2 early transport as possible")
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240529093849.1016172-3-jouni.hogander@intel.com

drivers/gpu/drm/i915/display/intel_psr.c

@@ -1525,6 +1525,8 @@ void intel_psr_get_config(struct intel_encoder *encoder,
 			pipe_config->enable_psr2_sel_fetch = true;
 	}
 
+	pipe_config->enable_psr2_su_region_et = intel_dp->psr.su_region_et_enabled;
+
 	if (DISPLAY_VER(dev_priv) >= 12) {
 		val = intel_de_read(dev_priv,
 				    TRANS_EXITLINE(dev_priv, cpu_transcoder));