drm/amd/display: Skip HDR metadata update when Smart Power OLED enabled

drm/amd/display: Skip HDR metadata update when Smart Power OLED enabled

[Why & How]
While smart power oled is enabled,
the infopacket contents are tied to the frame histogram,
so it does not need driver side to update the hdr metadata.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Anthony Koo <anthony.koo@amd.com>
Signed-off-by: Ian Chen <ian.chen@amd.com>
Signed-off-by: James Lin <pinglei.lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>