drm/amd/display: move the bounding box patch before calculate wm

[why]
driver updateis the dcn2_1_soc into dml before call update_bw_bounding_box

[How]
Move the patch function before calculate wm.

Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Signed-off-by: joseph graveno <joseph.gravenor@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>