* Update ov::hint::performance_hint UNDEFINED value from empty string to "UNDEFINED". * Update benchmark Python version. * Update. * Update. * Update. * Update the description about hint setting within benchmark APP README and help message.
* Update ov::hint::performance_hint UNDEFINED value from empty string to "UNDEFINED". * Update benchmark Python version. * Update. * Update. * Update. * Update the description about hint setting within benchmark APP README and help message.