COMPMID-417: Port NEDirectConvolution 1x1 to QS16.

Change-Id: Icae6a5091e836d0aca24375f43cca9e6d3a2090f
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/81662
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/core/Utils.h b/arm_compute/core/Utils.h
index 4ecd464..af788be 100644
--- a/arm_compute/core/Utils.h
+++ b/arm_compute/core/Utils.h
@@ -100,6 +100,7 @@
         case DataType::F32:
         case DataType::U32:
         case DataType::S32:
+        case DataType::QS32:
             return 4;
         case DataType::F64:
         case DataType::U64:
@@ -173,6 +174,7 @@
         case DataType::U32:
         case DataType::S32:
         case DataType::F32:
+        case DataType::QS32:
             return 4;
         default:
             ARM_COMPUTE_ERROR("Undefined element size for given data type");
@@ -645,6 +647,7 @@
     {
         case DataType::QS8:
         case DataType::QS16:
+        case DataType::QS32:
             return true;
         default:
             return false;