[CMake] If COMPILER_RT_INCLUDE_TESTS is off we shouldn't include the root test directory.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@247606 91177308-0d34-0410-b5e6-96231b3b80d8

Author: Chris Bieneman

CMakeLists.txt

@@ -311,5 +311,5 @@ add_subdirectory(lib)
 
 if(COMPILER_RT_INCLUDE_TESTS)
   add_subdirectory(unittests)
+  add_subdirectory(test)
 endif()
-add_subdirectory(test)