Added explicit sort order when fetching accounts.

In SQLite, if a sort order is not specified then the ordering is
undefined. In pre-L, SQLite would order accounts by the primary key.
But in L, the newer SQLite version appears to be ordering accounts by
the name.

Bug 18453759

Change-Id: I6bf2b0de59eca4c69472b4279b9e4194c3d3471e