[SYCL] Don't set alwaysinline for NativeCPU (#29546)

c3ce568 set all kernels with
OpenCLKernelAttr with alwaysinline.
We disabled the stub calling conversion for SYCL and NativeCPU,
we should disable the alwaysinline for NativeCPU as well.

Fix SYCL::check_device_code/native_cpu/native_cpu_subhandler.cpp

Author: jsji

clang/lib/CodeGen/CodeGenModule.cpp

@@ -6899,7 +6899,7 @@ void CodeGenModule::EmitGlobalFunctionDefinition(GlobalDecl GD,
     if (GD.getKernelReferenceKind() == KernelReferenceKind::Stub &&
         !D->hasAttr<NoInlineAttr>() &&
         !Fn->hasFnAttribute(llvm::Attribute::NoInline) &&
-        !D->hasAttr<OptimizeNoneAttr>() &&
+        !D->hasAttr<OptimizeNoneAttr>() && !LangOpts.SYCLIsNativeCPU &&
         !Fn->hasFnAttribute(llvm::Attribute::OptimizeNone) &&
         !ShouldAddOptNone) {
       Fn->addFnAttr(llvm::Attribute::AlwaysInline);