[clang] [clang][test] Fix builtin-rotate.c test __int128 test failure on ARM32 (PR #177732)

[NagaChaitanya Vellanki via cfe-commits]

================
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -ffreestanding %s -emit-llvm -o - | FileCheck %s
+// RUN: %if clang-target-64-bits %{ %clang_cc1 -ffreestanding %s -emit-llvm -o - | FileCheck %s --check-prefix=INT128 %}
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chaitanyav wrote:

in clang/test/lit.cfg.py

```
# Features
known_arches = ["x86_64", "mips64", "ppc64", "aarch64"]
if any(config.target_triple.startswith(x) for x in known_arches):
    config.available_features.add("clang-target-64-bits")

```

https://github.com/llvm/llvm-project/pull/177732