Only check System UI dexopt status after a mainline update or an OTA.

Bug: 227310505
Test: -
  1. Reboot.
  2. See "UpdatePackagesIfNeeded took to complete: 0ms"
  3. Install ART APEX and reboot.
  4. See "UpdatePackagesIfNeeded took to complete: 4851ms"
  5. Reboot.
  6. See "UpdatePackagesIfNeeded took to complete: 0ms"
Change-Id: I90bc702939a5529d2411657385e8c696c785cc10
1 file changed