COMPMID-873: Integrate RSH NEON Depthwise Convolution routine

Change-Id: Ida1e9a836bc518bfe5563e16bf7f92bde5fc13f7
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/118472
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
diff --git a/arm_compute/core/Types.h b/arm_compute/core/Types.h
index 72be5cb..5a08ac9 100644
--- a/arm_compute/core/Types.h
+++ b/arm_compute/core/Types.h
@@ -106,6 +106,13 @@
 /* Constant value used to indicate a ORB scaled pyramid */
 constexpr float SCALE_PYRAMID_ORB = 8.408964152537146130583778358414e-01;
 
+/** Supported tensor data layouts */
+enum class DataLayout
+{
+    NCHW,
+    NHWC
+};
+
 /** Quantization settings (used for QASYMM8 data type) */
 struct QuantizationInfo
 {