de0_nano: Fix comments in wb_intercon.conf

Inline comments are broken when running current version of FuseSoC
under python3. Move them to separate lines for now
de0_nano: Restruture and regenerate wisbone interconnect

This patch removes the wb_data_resize blocks from orpsoc_top since
they are now generated in wb_intercon. It also puts the arbiter
between or1k data bus and the debug bus in a separate arbiter to
save some logic
de0_nano: Replace hardcoded rom with wb_ram component

wb_ram makes it easier to select a bootloader by just replacing the
memfile to load
de0_nano: Fix simulator support
de0_nano: Use hex instead of dec in intercon files
de0_nano: Drop aw param for wb_ram
de0_nano: Add missing connections in orpsoc_top.v