Report SW version for Mer and Sailfish

Instead of kernel release, endurance-snapshot on Mer and Sailfish now
reports OS version, e.g. '1.0.5.57 (Paarlampi) (armv7hl,devel)'
Report HW adaptation version on Sailfish

endurance-snapshot on Sailfish now reports HW adaptation version as
e.g. 'Jolla:0.0.3.270 (armv7hl,devel)'