Add a module that handles with readelf comand.

While I was writing a script to parse binary/object text size, I wrote
a utitlity that invokes readelf, parse the output and wraps the
information into python data structure. I think its useful so I refine
the code and put it into 'utils' directory.

Passed gyplint.

TEST=None
BUG=None

Change-Id: Iaaf1d88db9771fdfa7ae84eca17cc136fbefc90c
1 file changed