don't scale drawable during preloading

Change-Id: Icba85dfbfb50c687ebccc47987fa90401dc06f9d
update bootanimation

Change-Id: I4ad6121e0951261f5afdd75fb29c12296b62affc
fix access-control bug

Change-Id: I5c0b178080ec69da522f61f2bf39d63ec4e6a832