[update] update to upstream commit 2450592
Squashed 'qtsystems/' changes from 2450592..762581e

762581e Add license files mandated by (L)GPL and FDL.
fa61ba4 Don't increment batteryMap before inserting.
5cbc871 Add manual sysinfo-tester from mobility
f51e439 Fix compile warnings and build.
75909f0 Fix reading imei with ofono
255b678 Fix simulator build without ofono

git-subtree-dir: qtsystems
git-subtree-split: 762581e5c33941e78a1a74c8262cc6be6c633ddf
Merge commit '53727f9159319609d728b3fbdcf25f3df5ae8485'