Running dupcheck.sh after a build on an image performs two checks:
* Check for duplicate shared libraries by MD5.
* Check for possible duplicate shared libraries by comparing .note
and .text ELF sections.
This helps looking for unnecessary file duplication in the final images.
Test: after running the script, reports will be generated in the 'out'
directory.
Change-Id: I91c044a52002557fdc8dc65bfc9fd5f313ca00f3