Merge pull request #27 from linux-on-ibm-z/stable-s390x

cmake: Install CheckAtomic.cmake (needed by lldb)

Author: fredriss

cmake/modules/CMakeLists.txt

@@ -118,6 +118,5 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
     PATTERN LLVMConfig.cmake EXCLUDE
     PATTERN LLVMConfigVersion.cmake EXCLUDE
     PATTERN LLVM-Config.cmake EXCLUDE
-    PATTERN GetHostTriple.cmake EXCLUDE
-    PATTERN CheckAtomic.cmake EXCLUDE)
+    PATTERN GetHostTriple.cmake EXCLUDE)
 endif()