Deprecate Context#createApplicationContext

If an application caches an ApplicationInfo and uses it to call
Context#createApplicationContext, the app will not get the most recent
version of the overlays for that application. To make things worse, the
LoadedApk stored in ActivityThread#mResourcePackages is updated using
the old ApplicationInfo causing further uses of the cached LoadedApk to
return outdated information.

Deprecate Context#createApplicationContext, convert all internal uses
to Context#createPackageContext(String packageName, ...) and log
whenever any one calls Context#createApplicationContext with an
outdated ApplicationInfo to detect debug issues in using old infos.

Bug: 188059515
Test: change wallpaper and observe widgets get reloaded with most
      recent overlays
Change-Id: I2aeefa8c0e66264859109975a54c4f73f76ad710