There is no cortex-A5 in the related products tab.
Mali-V550 - ARM
The drivers should work fine (it's an ARMv7A core like its bigger brothers so functionally identical), so really this is a question about performance which will depend heavily on what you are trying to do. On the whole video drivers don't generate a whole lot of CPU load, so I suspect you'll end up with far more CPU load from the application producing or consuming the video than from the video drivers themselves.
If you have a specific product enquiry drop an email to our product team; they can give a more detailed answer than I can give here.
Cheers, Pete
I mean a surveillance camera system.