[compiler-rt] separate lsan, ubsan, stats configuration from SANITIZER_COMMON_SUPPORTED_OS

Currently, SANITIZER_COMMON_SUPPORTED_OS is being used to enable many libraries.
Unfortunately this makes it impossible to selectively disable a library based on the OS.
This patch removes this limitation by adding a separate list of supported OSs for the lsan, ubsan, ubsan_minimal, and stats libraries.

Reviewed By: delcypher

Differential Revision: https://reviews.llvm.org/D113444