[clang] [clang][perf-training] Fix training when path to cmake has spaces in it (PR #162919)

[Tom Stellard via cfe-commits]

tstellar wrote:

I havne't run into this problem with anything else, but then again, cmake is the only executable called from the lit tests when doing the perf training.

https://github.com/llvm/llvm-project/pull/162919