drm: sync the mode validation for INTERLACE/DBLSCAN
Check whether the INTERLACE/DBLSCAN is supported by output device. If not, the mode containing the flag of INTERLACE/DBLSCAN will be marked as unsupported. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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