Run fsck to resolve possible data corruption

Trigger fsck on mount of /data if the value of ro.preventative_fsck is
not equal to the contents of /metadata/vold/preventative_fsck, then set
the file to the property to prevent future runs

See b/305658663 for context

Bug: 305658663
Test: Make sure fsck run after first boot and not after second
Ignore-AOSP-First: Critical UDC only bug
Change-Id: I856c812d22363cc1d1e8aa88706d4d3b89044f52