[llvm] [utils][UpdateLLCTestChecks] Add --include-constant-pool knob to update_llc_test_checks.py (PR #179536)

[Simon Pilgrim via llvm-commits]

https://github.com/RKSimon requested changes to this pull request.

Sorry for missing this - please ping, or I'm likely to miss quiet PRs in my notification stream

tests - either update some tests in CodeGen/RISCV to properly show the change or add actual unit tests to llvm-project\llvm\test\tools\UpdateTestChecks\update_llc_test_checks\...

https://github.com/llvm/llvm-project/pull/179536