tree 0be8d39c453ad4ea045580d235e9fd320eeaebd6
parent e925ffce03086c8654265705a7e0d3f4558ff5e9
author Dan Willemsen <dwillemsen@google.com> 1459314365 -0700
committer Dan Willemsen <dwillemsen@google.com> 1459314402 -0700

Provide a default DeviceArchVariant

The empty string is no longer a valid arm64 arch variant.

Change-Id: I61468ba09f9fd629e9ebd3915e266490416f65d6