Added hexagon support
Added hexagon support

std::to_string is not supported in the Hexagon complier

Signed-off-by: Mark Charlebois <f1891e7fc976ae1bd489627e2954fb730751d728@gmail.com>

PX4/ecl,PX4/ecl,PX4/ecl,PX4/ecl,PX4/ecl