sdm: Multi rect partial update changes

Read number of ROI supported information from panel info and
update it to partial update and strategy modules.

Change-Id: I42e820259de5a288d1d1c8b0e74e0e2b313d89d5
CRs-fixed: 1085287
diff --git a/sdm/libs/utils/debug.cpp b/sdm/libs/utils/debug.cpp
index e1024dd..fc8567a 100644
--- a/sdm/libs/utils/debug.cpp
+++ b/sdm/libs/utils/debug.cpp
@@ -164,7 +164,7 @@
 }
 
 DisplayError Debug::GetMixerResolution(uint32_t *width, uint32_t *height) {
-  char value[64];
+  char value[64] = {};
 
   DisplayError error = debug_.debug_handler_->GetProperty("sdm.mixer_resolution", value);
   if (error !=kErrorNone) {