[BACKEND] Update LLVM version to llvm/llvm-project@de88b2c (triton-lang#4703)

llvm/llvm-project@7ba6768

Author: chsigg

cmake/llvm-hash.txt

@@ -1 +1 @@
-c08c6a71cfc536e22fb7ad733fb8181a9e84e62a
+7ba6768df8181bc270763333969d4a1d6cc2e160

python/src/ir.cc

@@ -225,6 +225,7 @@ void init_triton_ir(py::module &&m) {
                     math::MathDialect, arith::ArithDialect, index::IndexDialect,
                     scf::SCFDialect, ::mlir::gpu::GPUDialect,
                     cf::ControlFlowDialect, LLVM::LLVMDialect>();
+    mlir::LLVM::registerInlinerInterface(registry);
     registerBuiltinDialectTranslation(registry);
     registerLLVMDialectTranslation(registry);
     mlir::LLVM::registerInlinerInterface(registry);