amdxdna: add VE2 auxiliary driver probe and device init

[rajkumar-xilinx]

1. Add amdxdna_aux_drv.c as the auxiliary_bus glue: DMA mask and amdxdna_dev_init ordering aligned with PCI.
2. Implement ve2_init/fini in ve2_aux.c from the out-of-tree VE2 path: device handle, AIE topology via aie_get_device_info(), firmware load and cert broadcast, per-column fw_slots.
3. Keep dev_ve2_info and ve2_aux_priv next to ve2_ops in ve2_aux.c
4. Define VE2-specific struct amdxdna_dev_hdl in ve2_aux.h
5. select PCI dev_info from pci_device_id driver_data rev maps: Refactor amdxdna_pci_drv.c so board selection matches the auxiliary driver pattern, each pci_device_id uses .driver_data to point at a null-terminated array of (revision, dev_info) entries instead of a separate amdxdna_ids[] table and amdxdna_get_dev_info().