Expose QU8 [Depthwise] Convolution 2D operators in Subgraph API

PiperOrigin-RevId: 384546022
diff --git a/include/xnnpack.h b/include/xnnpack.h
index 5fca0a4..574030f 100644
--- a/include/xnnpack.h
+++ b/include/xnnpack.h
@@ -176,12 +176,14 @@
   xnn_datatype_fp16 = 2,
   /// Quantized 8-bit signed integer with shared per-Value quantization parameters.
   xnn_datatype_qint8 = 3,
+  /// Quantized 8-bit unsigned integer with shared per-Value quantization parameters.
+  xnn_datatype_quint8 = 4,
   /// Quantized 32-bit signed integer with shared per-Value quantization parameters.
-  xnn_datatype_qint32 = 4,
+  xnn_datatype_qint32 = 5,
   /// Quantized 8-bit signed integer with shared per-channel quantization parameters.
-  xnn_datatype_qcint8 = 5,
+  xnn_datatype_qcint8 = 6,
   /// Quantized 32-bit signed integer with shared per-channel quantization parameters.
-  xnn_datatype_qcint32 = 6,
+  xnn_datatype_qcint32 = 7,
 };
 
 /// Define a tensor-type Value and add it to a Subgraph.