Add check package belong to caller

For API isWallperSupported, add check that queried package belongs to
the caller.

Bug: 194112606
Test: atest StrictModeTest
      atest WallpaperManagerTest
      atest NoWallpaperPermissionsTest
      atest ScopedStorageTest
      atest NoSystemFunctionPermissionTest#testSetWallpaper

Change-Id: I93c1b4b74d8bd1e1e5202cd39038319a3f8a7f23