drm/amd/display: Set enable_legacy_fast_update to false for DCN35/351

drm/amd/display: Set enable_legacy_fast_update to false for DCN35/351

[Why]
Existing logic will treat color temperature update = full update, cause
user color temp adjustment goes wait for update logic and fsleep in that
cause the adjustment not smooth.

[How]
Let DCN35/351 to follow DCN401 to set default value to false.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Fudong Wang <fudong.wang@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>