[clang] [NFC][Clang][Headers] Update refs to ACLE in comments (PR #78297)

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github-actions[bot] wrote:

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:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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git-clang-format --diff c1a442462d9d47f86392da7e7019ab218d7a3088 5306cac319986b110638148cb28b2a0f4a4b1ce4 -- clang/lib/Headers/arm_acle.h
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Headers/arm_acle.h b/clang/lib/Headers/arm_acle.h
index 9cd34948e3..2360685fa1 100644
--- a/clang/lib/Headers/arm_acle.h
+++ b/clang/lib/Headers/arm_acle.h
@@ -341,7 +341,6 @@ __smlawt(int32_t __a, int32_t __b, int32_t __c) {
 }
 #endif
 
-
 /* 8.5.4 Parallel 16-bit saturation */
 #if defined(__ARM_FEATURE_SIMD32) && __ARM_FEATURE_SIMD32
 #define __ssat16(x, y) __builtin_arm_ssat16(x, y)

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https://github.com/llvm/llvm-project/pull/78297