Readelf for nanoMIPS

Co-Authored-By: Jaydeep Patil <jaydeep.patil@imgtec.com>
Co-Authored-By: Matthew Fortune <matthew.fortune@imgtec.com>
Co-Authored-By: Maciej W. Rozycki <macro@mips.com>
Co-Authored-By: Stefan Markovic <stefan.markovic@mips.com>
Co-Authored-By: Sara Graovac <sara.graovac@syrmia.com>
Co-Authored-By: Dragan Mladjenovic <dragan.mladjenovic@syrmia.com>