Add zygote space to Dalvik Heap

Broken by
https://googleplex-android-review.git.corp.google.com/#/c/590612/

This change fixes it by correctly putting the zygote in Dalvik Heap
instead of Dalvik Other.

Bug: 18447855

Change-Id: I4a58480f1ef1eb17e760245d8690ce92e28ebea3