tests: Update tests to use ALL/gem5.opt compilation

Where possible the gem5 tests have been updated to use the
build/ALL/gem5.opt compilation.

If a quick test requied a specific a ISA/protocol compilation they
were moved to the long/nightly set. This means all the quick/kokoro
tests are run with the build/ALL/gem5.opt compilation.

The learning_gem5 tests have been updated to use ALL/gem5.opt.

The equivilant examples on the website have been updated via:
https://gem5-review.googlesource.com/c/public/gem5-website/+/63336

Change-Id: I533689ad6848233867bdba9e9a43bb5840ed65c7
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/63374
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
70 files changed