vaapih265enc: Can not set the correct level according resolution and frame rate

caps=video/x-raw,format=NV12,width=8192,height=4320,framerate=120/1 kind of format set the level to level 6. But according to spec, this should be level 6.2

The command line: videotestsrc ! capsfilter caps=video/x-raw,format=NV12,width=8192,height=4320,framerate=120/1 ! vaapih265enc ! fakesink

Get vaapi gstvaapiencoder_h265.c:2038:ensure_profile_tier_level: selected main profile at tier main and level 6