[llvm] [SPIRV] Handle `externally_initialized` for AMDGCN flavoured SPIRV (PR #175277)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp --diff_from_common_commit
``````````

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``````````diff
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index 84813905d..98b5bfd67 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -4798,7 +4798,8 @@ bool SPIRVInstructionSelector::selectGlobalValue(
   if (GlobalVar->isExternallyInitialized() &&
       STI.getTargetTriple().getVendor() == Triple::AMD) {
     constexpr unsigned ReadWriteINTEL = 3u;
-    buildOpDecorate(Reg, MIRBuilder, SPIRV::Decoration::HostAccessINTEL, {ReadWriteINTEL});
+    buildOpDecorate(Reg, MIRBuilder, SPIRV::Decoration::HostAccessINTEL,
+                    {ReadWriteINTEL});
     MachineInstrBuilder MIB(*MF, --MIRBuilder.getInsertPt());
     addStringImm(GV->getName(), MIB);
   }

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https://github.com/llvm/llvm-project/pull/175277