Fix profiling R2R code on Windows x64 (#54318)

The kernel requires the function table to be 4-byte aligned.

src/coreclr/tools/aot/ILCompiler.ReadyToRun/Compiler/DependencyAnalysis/ReadyToRun/RuntimeFunctionsTableNode.cs

@@ -67,6 +67,7 @@ public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
                 LayoutRuntimeFunctions();
 
             ObjectDataBuilder runtimeFunctionsBuilder = new ObjectDataBuilder(factory, relocsOnly);
+            runtimeFunctionsBuilder.RequireInitialAlignment(4);
 
             // Add the symbol representing this object node
             runtimeFunctionsBuilder.AddSymbol(this);