COMPMID-433 - Port NEGEMM to support 16 bit fixed point

Change-Id: I82de74d7027bbc8a00a4d6671e968785280d5f6c
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/79498
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/tests/TensorLibrary.h b/tests/TensorLibrary.h
index 6c079b6..5b2c5b6 100644
--- a/tests/TensorLibrary.h
+++ b/tests/TensorLibrary.h
@@ -469,6 +469,7 @@
             break;
         }
         case DataType::S16:
+        case DataType::QS16:
         {
             std::uniform_int_distribution<int16_t> distribution_s16(std::numeric_limits<int16_t>::lowest(), std::numeric_limits<int16_t>::max());
             fill(tensor, distribution_s16, seed_offset);