Macho-embedded: rename compiler-rt support from Darwin-embedded

There's nothing Darwin-based in the files or target now, so the previous name
is now misleading.

llvm-svn: 199733
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 727cfba..b8d9639 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -281,7 +281,7 @@
                               StringRef DarwinStaticLib, bool AlwaysLink,
                               bool IsEmbedded) const {
   SmallString<128> P(getDriver().ResourceDir);
-  llvm::sys::path::append(P, "lib", IsEmbedded ? "darwin_embedded" : "darwin",
+  llvm::sys::path::append(P, "lib", IsEmbedded ? "macho_embedded" : "darwin",
                           DarwinStaticLib);
 
   // For now, allow missing resource libraries to support developers who may