[clang] [lld] [llvm] [ARM][NFC] Fix invalid target triples in tests (PR #213588)

[Peter Smith via cfe-commits]

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@@ -3,7 +3,7 @@
 ; CHECK: .LBB0_1:
 ; CHECK: b .LBB0_1
 
-target triple = "thumbv8m-unknown-linux-android"
+target triple = "thumbv8m.main-unknown-linux-android"
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smithp35 wrote:

If possible would be good to make this `thumbv8m.main-none-eabi` as in the real world there isn't a M-profile linux OS or Android environment.

I expect that any Thumb2 supporting triple would work.

https://github.com/llvm/llvm-project/pull/213588