The SP805 binding sets the name for the actual watchdog clock to
"wdog_clk" (with an underscore).
Change the name in the DTs for the Broadcom NSP platform to match that.
The Linux and U-Boot driver use the *first* clock for this purpose
anyway, so it does not break anything.
Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>