Update src/llvm to use the rust-lang version again.

bitshifter · bitshifter · commit 09cc3e24a0fc · 2016-07-19T21:07:42.000+10:00
diff --git a/.gitmodules b/.gitmodules
@@ -1,6 +1,6 @@
 [submodule "src/llvm"]
 	path = src/llvm
-	url = https://github.com/bitshifter/llvm.git
+	url = https://github.com/rust-lang/llvm.git
 	branch = master
 [submodule "src/compiler-rt"]
 	path = src/compiler-rt
