In the future, discoverDetails() should become optional.
The state of a QLowEnergyService after its creation should have
a name which does not imply it is not functional yet. This patch
changes the name of the initial state from "DiscoveryRequired"
to the neutral "RemoteService".
Task-number: QTBUG-75340
Change-Id: Ib407e60f5fc7264a04a124561dacbcebb01bf252
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>