h265parser: weaken the check of lower_bit_rate_constraint_flag_set.
The general_lower_bit_rate_constraint_flag flag only controls the HbrFactor of the bitstream, and so it only changes the limitation of the level and tier. This should not be a critical error for decoding the streams if this flag is not set correctly. And so when we judge the profile, we should only consider it as a mismatch bit, not a critical flag that excludes some profile candidate.
Fix: #949 (closed)