e1ff214e32
When the storage is emulated, we don't want to install ASEC containers to it. This adds the API to check when the external storage is emulated and uses it to check whether or not to install packages to the external storage in an ASEC container. Bug: 3024387 Change-Id: Ia0318aca9e4938a4897deaada5603a4c7c1d0f48