hpblob: DFDeviceProvider synchronized
hpblob: DFDeviceProvider synchronized

Added changes for PR#196

Signed-off-by: Christoph Reuling <46eee97b00b0effac8de12d6c6c83406560f28fc@rademacher.de>

rdm-dev/meta-jens,rdm-dev/meta-jens,rdm-dev/meta-jens,rdm-dev/meta-jens