Cabal: Take into account compilerBuildWay when computing final library ways

In the profiling dynamic patch I made a mistake when computing the
needed ways for a build.

When building an executable, the Haskell modules need to be built

* For the final link way
* For the build way of the compiler if TH is enabled

Before this patch, the modules were being built for all the configured
library ways, which built modules in more configurations than the
previous version of Cabal.

Fixes #10418

(cherry picked from commit 27c26688)