display: Remove klockwork warnings and errors.

Remove all klockwork warnings and errors for libgralloc,
libhwcomposer, liboverlay, libqdutils, libqservice, libvirtual,
libexternal libraries to avoid buffer overflow and memory leaks.

Change-Id: I078143bcbcf5e4b342156bd8305a644566f7cc4b
diff --git a/libqdutils/mdp_version.cpp b/libqdutils/mdp_version.cpp
index 9e36980..31c9155 100644
--- a/libqdutils/mdp_version.cpp
+++ b/libqdutils/mdp_version.cpp
@@ -246,6 +246,7 @@
         if(fp){
             //Format "left right" space as delimiter
             if(fread(split, sizeof(char), 64, fp)) {
+                split[sizeof(split) - 1] = '\0';
                 mSplit.mLeft = atoi(split);
                 ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
                 char *rght = strpbrk(split, " ");