mondrianwifi: build.prop: Set lcd_density to 400

Change-Id: Icd0555aa600f0c76361e87d797f5cc72fbe9eb36
mondrianwifi: Use tablet jvm heap config instead of phone jvm heap

Change-Id: I9bdd3f426c4dd1a2bcd9c234d96b7220dcd7f2a1
[WIP] mondrianwifi: Add a camera wrapper

Change-Id: If1f933f0bb6456659b6f28ac95ce7e1c324a7249