Merge "HwBlob: s/malloc/calloc/" into oc-dev

am: 123ffb6202

Change-Id: I8ecd922f540f9b93edd44056bf375e464c63eb54

core/jni/android_os_HwBlob.cpp

@@ -90,7 +90,7 @@ JHwBlob::JHwBlob(JNIEnv *env, jobject thiz, size_t size)
     mObject = env->NewWeakGlobalRef(thiz);
 
     if (size > 0) {
-        mBuffer = malloc(size);
+        mBuffer = calloc(size, 1);
     }
 }