[llvm] [llvm][docs] MemTagSanitizer is only supported on AArch64 Android (PR #120545)

[Florian Mayer via llvm-commits]

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@@ -29,9 +29,9 @@ Usage
 =====
 
 Compile and link your program with ``-fsanitize=memtag`` flag. This
-will only work when targeting AArch64 with MemTag extension. One
+will only work when targeting AArch64 Android with MemTag extension. One
 possible way to achieve that is to add ``-target
-aarch64-linux -march=armv8+memtag`` to compilation flags.
+aarch64-linux-android -march=armv8+memtag`` to compilation flags.
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fmayer wrote:

should we mention `-target-feature` (`-Xclang -target-feature -Xclang +mte`)?

https://github.com/llvm/llvm-project/pull/120545