[asan] use short path for sanitizer_common/tests/sanitizer_test_utils.h, add -I sanitizer_common/tests to asan/tests/CMakeLists.txt

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@175142 91177308-0d34-0410-b5e6-96231b3b80d8