Fixed field packing on 32-bit Android when used C-interface

Author: azhirnov

Graphics/GraphicsEngine/interface/PipelineState.h

@@ -437,6 +437,12 @@ struct PipelineStateCreateInfo
 
     /// The number of elements in ppResourceSignatures array.
     Uint32 ResourceSignaturesCount DEFAULT_INITIALIZER(0);
+
+    // In 32-bit, there might be a problem that may cause mismatch between C++ and C interfaces:
+    // PSODesc contains a Uint64 member, so the entire structure has 64-bit alignment. When
+    // another struct is derived from PipelineStateCreateInfo, though, the compiler may place
+    // another member in this space. To fix this, we add padding.
+    Uint32 _Padding;
 };
 typedef struct PipelineStateCreateInfo PipelineStateCreateInfo;