./orangecrab.py --revision r0.1 --device 85F generates code for a 25F device

[tommythorn]

Following the directions from https://github.com/enjoy-digital/litex/blob/master/README.md and executing the target ./orangecrab.py --revision r0.1 --device 85F resulted in a
./soc_basesoc_orangecrab/gateware/build_top.sh with

# Autogenerated by LiteX / git: 34f26868
set -e
yosys -l top.rpt top.ys
nextpnr-ecp5 --json top.json --lpf top.lpf --textcfg top.config      --25k --package CSFBGA285 --speed 8 --timing-allow-fail 
ecppack top.config --svf top.svf --bit top.bit

The --25k should be --85k

When fixing this manually the result builds and runs, but SDRAM test fails, so I suspect the revision also isn't propagated correctly.

[tommythorn]

I don't really speak Parseltongue, but it seems that the parsed args are stripped off by soc_core_argdict() (called from soc_sdram_argdict()).

I prepped a fix based on other code in this directory. Stay tuned.