[clang] [llvm] [AArch64] Rename memory hints to avoid clash with arm_acle.h macros (PR #226432)

[Paul Walker via llvm-commits]

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@@ -40,6 +40,10 @@ void __sev(void);
 void __sevl(void);
 void __yield(void);
 
+/* Atomic Hints */
+const int HINT_STSHH_KEEP = 0;
+const int HINT_STSHH_STRM = 1;
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paulwalker-arm wrote:

Is it intentional to allow access to these outside of __ARM_64BIT_STATE?

https://github.com/llvm/llvm-project/pull/226432