[AMDGPU] Add the missing clang change of the experimental buffer fat pointer

llvm-svn: 356385
diff --git a/clang/lib/Basic/Targets/AMDGPU.cpp b/clang/lib/Basic/Targets/AMDGPU.cpp
index 7120f6a..c1f3fb6 100644
--- a/clang/lib/Basic/Targets/AMDGPU.cpp
+++ b/clang/lib/Basic/Targets/AMDGPU.cpp
@@ -34,7 +34,8 @@
 static const char *const DataLayoutStringAMDGCN =
     "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32"
     "-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128"
-    "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5";
+    "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"
+    "-ni:7";
 
 const LangASMap AMDGPUTargetInfo::AMDGPUDefIsGenMap = {
     Generic,  // Default