drm/radeon: comment out some currently unused eg dpm code

Keep it around for reference.

Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/radeon/cypress_dpm.c

···
 	return 0;
 }
 
+#if 0
 void cypress_dpm_reset_asic(struct radeon_device *rdev)
 {
 	rv770_restrict_performance_levels_before_switch(rdev);
 	rv770_set_boot_state(rdev);
 }
+#endif
 
 void cypress_dpm_display_configuration_changed(struct radeon_device *rdev)
 {