The workaround for apps using older version of soinfos

Skip the check for accessibility in the case soinfo
does not have primary/secondary namespaces associated
with them.

Bug: http://b/37191433
Test: start an app from http://b/37191433 make sure it does not crash on lunch
Change-Id: Id4c0bdab4dfc6bc8a33fc275d71e325518e0759f