Fix unresponsive home key after waking device with a long press

With the lockscreen disabled mHomeConsumed would not be properly set back to
false upon releasing the key, causing a subsequent press to perform no action.

Change-Id: I38eeba5850c2f0474cc4cca82a9dcbf17afa4665
Merge "Fix unresponsive home key after waking device with a long press" into jb-mr2