R600: Move DataLayout to AMDGPUTargetMachine

This is a follow up to r227113.

It is now required to use the amdgcn target for SI and newer GPUs.

llvm-svn: 227316
diff --git a/llvm/test/CodeGen/R600/hsa.ll b/llvm/test/CodeGen/R600/hsa.ll
index 5ce3bea..ff75b90 100644
--- a/llvm/test/CodeGen/R600/hsa.ll
+++ b/llvm/test/CodeGen/R600/hsa.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -mtriple=r600--amdhsa -mcpu=kaveri | FileCheck --check-prefix=HSA %s
+; RUN: llc < %s -mtriple=amdgcn--amdhsa -mcpu=kaveri | FileCheck --check-prefix=HSA %s
 
 ; HSA: {{^}}simple:
 ; HSA: .section        .hsa.version