build fixes for the QT_STRICT_ITERATORS conditional

build fixes for the QT_STRICT_ITERATORS conditional

the only thing left to fix is the dbus component which requires the
pointer operator backported from https://github.com/qtproject/qtbase/commit/9c5a77f0ef0b2ace0b11719142115eded4a7c05e
but it messes up the erase and insert templates and causes source
incompatibilities so it has to investigated further.

upstream commits:
https://github.com/qtproject/qtbase/commit/fad1fa65ed2a76539a229acaa83299875ce8b4c1
https://github.com/qtproject/qtbase/commit/7c1e0fef8e35ecd8487c41dc39e7ce46537f3040
https://github.com/qtproject/qtbase/commit/c4fbe872be1316f2fd65aa62863d6617cb129a3f
https://github.com/qtproject/qtbase/commit/0412ad35132e0de008d601912ded1f147014cab1

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>