SWDEV-505833 - Provide functionality to avoid L2 flush for CPX mode for dispatch packets

- Added DEBUG_CLR_SKIP_RELEASE_SCOPE flag to force release scope to
   SCOPE_NONE in AQL packet header

Change-Id: Ife02cddb9d5cd4749103ce585d3d5fe9024c6868

rocclr/device/rocm/rocvirtual.cpp

@@ -906,6 +906,12 @@ bool VirtualGPU::dispatchGenericAqlPacket(
     addSystemScope_ = false;
   }
 
+  if (DEBUG_CLR_SKIP_RELEASE_SCOPE) {
+    header &= ~(HSA_FENCE_SCOPE_AGENT << HSA_PACKET_HEADER_SCRELEASE_FENCE_SCOPE |
+                HSA_FENCE_SCOPE_SYSTEM << HSA_PACKET_HEADER_SCRELEASE_FENCE_SCOPE);
+    header |= (HSA_FENCE_SCOPE_NONE << HSA_PACKET_HEADER_SCRELEASE_FENCE_SCOPE);
+  }
+
   auto expected_fence_state = extractAqlBits(header, HSA_PACKET_HEADER_SCRELEASE_FENCE_SCOPE,
                          HSA_PACKET_HEADER_WIDTH_SCRELEASE_FENCE_SCOPE);