target_files_diff: Fix the issue with file type change.

When a file is switched from a regular file to a symlink, we should skip
the comparasion.

Bug: 28373409
Change-Id: I8fef00ab9f2d6f811fde1cadf595e8bd46af2dfd
(cherry picked from commit f31a6deeeeb896cc516c2f2f91ceff1fd0702938)
1 file changed