Trackball wake

Originally by drewis. Doesn't work properly when cherry-picked.
Remove drawable in preparation to add it again

This drawable is missing in carbon. I will make a commit removing it, then making another adding it again so I can cherry pick the second one.

Conflicts:

	packages/SystemUI/res/drawable-hdpi/ic_lockscreen_target_activated.png
Read drawable

Fix handy for cherry-picking for building Carbon