Remove fork of BusTopologies from rocket-chip

Update generators/chipyard/src/main/scala/config/AbstractConfig.scala

Co-authored-by: Abraham Gonzalez <abe.j.gonza@gmail.com>

Use conda + Update initial setup docs

Co-authored-by: Sagar Karandikar <sagark@eecs.berkeley.edu>

This makes the find and fd cases match, as fd already ignores dotfiles.

Fix DefaultClockFrequencyKey rounding

Update SiFive submodules to CHIPS fork

DROMAJO_ROM variable fix