The "test-gem5-library-example-riscvmatched-fs" test, which runs "configs/example/gem5_library/riscvmatched-fs.py", was running the script in full. This takes a very long time. Given we already have boot tests for RISCV, it's better to just run this configuration to just the end of the Linux boot (significantly faster than a full OS boot). This patch adds this feature to the config script and modifies the test to utilize it. Change-Id: I1e37a26aab5e9a127ebd64590be79fbc16fe53aa Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65853 Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu> Maintainer: Bobby Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>