Haskell toolchain libraries (e.g. base) cannot be found on darwin_arm64 with GHC 9.2

[fwcd]

Describe the bug
When using GHC 9.2 on arm64 macOS (M1), after applying the fix from #1808, building the tutorial still errors with:

Error in fail: 
base is not a toolchain library.
Check that it ships with your version of GHC.
The following toolchain libraries are available:
{}

To Reproduce
Apply #1808 and update the GHC version in tutorial/WORKSPACE:23:

- rules_haskell_toolchains(version = "8.10.7")
+ rules_haskell_toolchains(version = "9.2.1")

Then run bazel build //.. in tutorial.

Expected behavior
A clear and concise description of what you expected to happen.

Environment

• OS name + version: macOS 12.5.1 on arm64
• Bazel version: 5.2.0
• Version of the rules: 5b3eb69

Additional context
From what I can tell the issue is that the location of toolchain libraries (e.g. base) moved from

<ghc install root>/lib/ghc-8.10.7/base-4.14.3.0

in GHC 8.10 to

<ghc install root>/lib/ghc-9.2.1/lib/aarch64-osx-ghc-9.2.1/base-4.16.0.0

in GHC 9.2. (notice the additional aarch64-osx-ghc-9.2.1 directory)

[avdv]

Could you try GHC 9.2.3 instead? This does not seem to have the extra aarch64-osx-ghc-9.2.* directory. Scratch that, I did not look close enough.

[avdv]

Could you please try PR #1825 and see if it fixes this problem for you?

[tsiq-aaronh]

It got past that step! Thanks! We're hitting an issue where llvm needs to be installed... but that's a separate issue. Feel free to close this one.