[RONs] Use InflationIdentity for AOD composition

AOD Skeleton does not change when font size is changed. That's why we want to add font size related configuration changes to our Composition key to use last inflated notification.
Fixes: 421965928
Flag: com.android.systemui.ui_rich_ongoing_aod_skeleton_bg_inflation
Test: Manual. Post a ron and change font size. Verification video will be added

Change-Id: I6e075302568914f4d0b85a956d0d20d3bb7f1110