dt-bindings: gnss: add u-blox,neo-6m compatible
Add compatible for u-blox NEO-6M GPS module.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
authored by