PM: docs: Use my kernel.org address in ABI docs and DT bindings

For the sake of consistency, use my kernel.org address in all Contact
records in sysfs-devices-power and sysfs-power, and in the power-domain
DT binding.

Signed-off-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://patch.msgid.link/5911353.DvuYhMxLoT@rjwysocki.net