[apps] Fix an uninitialized variable

Change-Id: I8a5e28b411a168e7c62108c65a7442b20f6f609a

apps/regression/graph_view.cpp

@@ -8,7 +8,9 @@ namespace Regression {
 
 GraphView::GraphView(Store * store, CurveViewCursor * cursor, BannerView * bannerView, View * cursorView) :
   CurveView(store, cursor, bannerView, cursorView),
-  m_store(store)
+  m_store(store),
+  m_xLabels{},
+  m_yLabels{}
 {
 }
 

liba/src/aeabi-rt/memclr.c

@@ -3,6 +3,10 @@
 
 /* See the "Run-time ABI for the ARM Architecture", Section 4.3.3 */
 
+void __aeabi_memclr(void * dest, size_t n) {
+  memset(dest, 0, n);
+}
+
 void __aeabi_memclr4(void * dest, size_t n) {
   memset(dest, 0, n);
 }