tree c20e04148251704894f459523c6ceddc038318cd
parent f3af6ce6314a3d32b3b563806a6f990b1af9772a
author Dan Willemsen <dwillemsen@google.com> 1457412984 -0800
committer Dan Willemsen <dwillemsen@google.com> 1457413502 -0800

Use optional_dirs for non-soong projects

On some branches, some of these projects may not exist. Use dirs for the
blueprint / soong projects, and optional_dirs for everything else.

Change-Id: I2b84948f1818941a21981c135bd6237852bfcc8b