Processing elements with local memory no longer work

[cahz]

PR #318 changed the behavior for detecting the memory ports on PEs. The decision is now made according to the number of available address segments. However, this does not take into account the address segment on optional memory master ports (e.g. M_AXI) of a PE.

The check here needs to filter out those segments on the master side.

Steps to reproduce: try to do a composition with an arbitrary PE from tapasco-riscv