Mer: Do not use custom key for workaround_machineTypeFromMap
Mer: Do not use custom key for workaround_machineTypeFromMap

Storing with a custom key would require updating the installer as well.

Fixes 1ccbc9a (Mer: Do not use device type ID to distinguish architecture)

martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator