This gets qmicli working with the MDM6600 modem.

Cc: Bjørn Mork <bjorn@mork.no>
Reviewed-by: NSebastian Reichel <sre@kernel.org>
Tested-by: NSebastian Reichel <sre@kernel.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>
Acked-by: NBjørn Mork <bjorn@mork.no>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>