[llvm] [CMake] Configure ccache using command line options (PR #134857)

[Kajetan Puchalski via llvm-commits]

mrkajetanp wrote:

Given that this is effectively the same as what was previously agreed on but with the shortcomings fixed, should we just give it a try to have it run through the buildbots?

https://github.com/llvm/llvm-project/pull/134857