Misc Makefile Fixes

[abejgonzalez]

Fixes issue where if the compilation was stopped (i.e CTRL-C'ed during the firtool recipe) it would fail to update any transient make variable (since the old $(SFC_LEVEL) $(EXTRA_FIRRTL_OPTIONS) $(FINAL_ANNO_FILE) $(MFC_LOWERING_OPTIONS) recipe would not be re-run). Instead of transiently updating variables, instead store the results to a file so that make can properly track what variables updated.

Always try to dump with sources inlined for any of the run-* targets.

Sometimes when SBT assembly is run and the *.jar it is supposed to change/generate is cached/up-to-date it will not touch the output *.jar file. Therefore force touch it so that it is updated for future make requirements.

Related PRs / Issues:

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• RTL change
• Software change (RISC-V software)
• Build system change
• Other

Contributor Checklist:

• Did you set main as the base branch?
• Is this PR's title suitable for inclusion in the changelog and have you added a changelog:<topic> label?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• Did you mark the PR with a changelog: label?
• (If applicable) Did you update the conda .conda-lock.yml file if you updated the conda requirements file?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you add a test demonstrating the PR?

• (If applicable) Did you mark the PR as Please Backport?