sdm:scalar:intialize scaling params.

Change-Id: Ib6affe3cbdb730e99a51525526f1ff91db9bdd53
CRs-Fixed: 1095516
diff --git a/sdm/libs/core/fb/hw_scale.cpp b/sdm/libs/core/fb/hw_scale.cpp
index 4933412..0997d1a 100644
--- a/sdm/libs/core/fb/hw_scale.cpp
+++ b/sdm/libs/core/fb/hw_scale.cpp
@@ -133,7 +133,7 @@
     mdp_layer->flags |= MDP_LAYER_ENABLE_QSEED3_SCALE;
     mdp_scale = &scale_data_v2_.at(index);
   } else {
-    mdp_scale_data_v2 mdp_dest_scale;
+    mdp_scale_data_v2 mdp_dest_scale = {0};
 
     dest_scale_data_v2_.insert(std::make_pair(index, mdp_dest_scale));
     mdp_scale = &dest_scale_data_v2_[index];