avutil/hwcontext_d3d11va: add BGRA/RGBA10 formats support

Desktop duplication outputs those

libavutil/hwcontext_d3d11va.c

@@ -86,6 +86,8 @@ static const struct {
 } supported_formats[] = {
     { DXGI_FORMAT_NV12,         AV_PIX_FMT_NV12 },
     { DXGI_FORMAT_P010,         AV_PIX_FMT_P010 },
+    { DXGI_FORMAT_B8G8R8A8_UNORM,    AV_PIX_FMT_BGRA },
+    { DXGI_FORMAT_R10G10B10A2_UNORM, AV_PIX_FMT_X2BGR10 },
     // Special opaque formats. The pix_fmt is merely a place holder, as the
     // opaque format cannot be accessed directly.
     { DXGI_FORMAT_420_OPAQUE,   AV_PIX_FMT_YUV420P },