Can IO analog pins be used as bidirectional? I want to use this pin as both input and output in post silicon

I assume you're talking about the Caravel GPIO pin analog connection? It's just a direct wired connection, so you can use it any way you want, as long as you keep the digital buffers shut off.

Can I use these pins as analog IO if I map like these in user defines

Why would you map them to a digital configuration if they are being used as analog pins?