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

verisim/Makefrag-verilator

@@ -24,8 +24,6 @@ verilator/verilator-$(VERILATOR_VERSION).tar.gz:
 	mkdir -p $(dir $@)
 	wget http://www.veripool.org/ftp/verilator-$(VERILATOR_VERSION).tgz -O $@
 
-rocketchip_csrc_dir = $(ROCKETCHIP_DIR)/src/main/resources/csrc
-
 # Run Verilator to produce a fast binary to emulate this circuit.
 VERILATOR := $(INSTALLED_VERILATOR) --cc --exe
 VERILATOR_FLAGS := --top-module $(MODEL) \
@@ -33,4 +31,4 @@ VERILATOR_FLAGS := --top-module $(MODEL) \
 	+define+STOP_COND=\$$c\(\"done_reset\"\) --assert \
 	--output-split 20000 \
 	-Wno-STMTDLY --x-assign unique \
-	-O3 -CFLAGS "$(CXXFLAGS) -DVERILATOR -include $(rocketchip_csrc_dir)/verilator.h"
+	-O3 -CFLAGS "$(CXXFLAGS) -DTEST_HARNESS=V$(MODEL) -DVERILATOR"