drm/amd/display: Copy crc_enabled when duplicating dm_crtc_state

[Why]
When running igt@kms_plane@pixel-format-pipe-* tests the CRC read will
time out and the test will fail.

This is because the CRTC is duplicated but the crc_enabled parameter
isn't copied over to the new dm_crtc_state. CRC reads will time out
because amdgpu_dm_crtc_handle_crc_irq will no longer call
drm_crtc_add_crc_entry.

[How]
Copy crc_enabled when duplicating the state.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <David.Francis@amd.com>
Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -3003,6 +3003,7 @@ dm_crtc_duplicate_state(struct drm_crtc *crtc)
 	state->abm_level = cur->abm_level;
 	state->vrr_supported = cur->vrr_supported;
 	state->freesync_config = cur->freesync_config;
+	state->crc_enabled = cur->crc_enabled;
 
 	/* TODO Duplicate dc_stream after objects are stream object is flattened */