Bump rocket, make possible to use published deps (#47)

* Use published rocketchip

* Simulator works!

* Gitignore was masking csrc

* Fix broken submodules

* Update gitignore

* Fix things up

* Some more cleanup

* Clean up so that using maven works

* Incorporate feedback

* Oops

* Add workaround for some of csrc

* Forgot dtm and jtag

* Make name better and add comment

* Extraneous comment

* Fix includes.

After running a clean build, I realized old build state was masking this
problem. verisim/csrc needs to be in the include path until we find a more
permanent solution to our problem.

* Add target to generate verilator-specific files.

* Ignore DS_Store

* Generate bootrom from testchipip

* Oops

* Add extraneous rocket-dsptools reference

.gitignore

@@ -1,6 +1,12 @@
+bootrom
 /Makefrag.pkgs
 target
 *.jar
 *.stamp
 /vsim
-/verisim
+/verisim/generated-src*
+/verisim/simulator-*
+/verisim/verilator
+simv*
+*.vcd
+.DS_Store