Reapply "[PM] Support sdkVersionFull in PackageManager"

This reverts commit 1ee03248.

Flag: android.sdk.major_minor_versioning_scheme
Test: atest PackageManagerSettingsTests
Test: atest FrameworksMockingServicesTests_android_server_pm
Test: Manual test:
    1. Flash one build without the patch (no `sdkVersionFull` attribute)
    2. Add some widgets and install some apps
    3. Flash the build that includes this patch
    4. Verify the widgets and apps exist
Bug: 374765600
Change-Id: I9050c5e31988f677f1f11cd5d58e6d917033570a