COMPMID-2235: Extend type support for CL/NEON DequantizationLayer.

Adds support for:
- QSYMM8

Change-Id: Ia0b839fc844ce0f968dad1b69a001f9a660dbcd5
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1378
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/utils/TypePrinter.h b/utils/TypePrinter.h
index 49edffb..1f60537 100644
--- a/utils/TypePrinter.h
+++ b/utils/TypePrinter.h
@@ -322,14 +322,9 @@
  */
 inline ::std::ostream &operator<<(::std::ostream &os, const QuantizationInfo &qinfo)
 {
-    if(!qinfo.scale.empty())
-    {
-        os << "Scale:" << qinfo.scale[0] << "~";
-    }
-    if(!qinfo.empty())
-    {
-        os << "Offset:" << qinfo.offset[0];
-    }
+    const UniformQuantizationInfo uqinfo = qinfo.uniform();
+    os << "Scale:" << uqinfo.scale << "~";
+    os << "Offset:" << uqinfo.offset;
     return os;
 }