tree 148cffcdcfee0e93f1a358f64c7a3458c0ae96c5
parent a0ced754367e75051d64c62ee4e2f1e4b9208169
author Daniel Rosenberg <drosen@google.com> 1436919357 -0700
committer Daniel Rosenberg <drosen@google.com> 1436919532 -0700

rootdir: Create cache folder in Android.mk

system.img may contain the root directory as well. In that case, we
need to create some folders init.rc would during the build.

Change-Id: I312104ff926fb08d98ac8256b76d01b0a90ea5e5