Fix match in bels.rs Change create_tilegroups to work with DCCs.
Fix match in bels.rs
Change create_tilegroups to work with DCCs.

Signed-off-by: Maciej Dudek <a98c68ec12e1b0de34de4f65b9790a9646ad7891@antmicro.com>

gatecat/prjoxide,gatecat/prjoxide,gatecat/prjoxide