Add the TPS23881 I2C Power Sourcing Equipment controller device tree
bindings documentation.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240417-feature_poe-v9-13-242293fd1900@bootlin.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>