staging: mt7621-pci: dt-bindings: add perst-gpio to sample bindings

Both driver and device tree have been updated to use GPIO perst.
Update bindings documentation also.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergio Paracuellos 2019-06-19 09:44:58 +02:00 • committed by Greg Kroah-Hartman
commit 014860188c