New affine address mapper in AGU for non-interleaved data access

[IveanEx]

This PR introduces the new affined address mapping unit to map the address from interleaved to non-interleaved, aiming to help avoid bank conflict and performance degradation. More specifically, we:

1. add the address remap flag in the AGU/streamer
2. enable the addr remap flag for gemmx and relevant modification in the snaxgen
3. add CSR modification in snax-gemmx library