raspberrypi inclusion
category: feature
bugzilla: 50432

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Signed-off-by: NSerge Schneider <serge@raspberrypi.org>

PoE HAT driver cleanup

* Fix undeclared variable in rpi_poe_fan_suspend
* Add SPDX-License-Identifier
* Expand PoE acronym in Kconfig help
* Give clearer error message on of_property_count_u32_elems fail
* Add documentation
* Add vendor to of_device_id compatible string.
* Rename m_data_s struct to fw_data_s
* Fix typos

Fixes: #2665
Signed-off-by: NSerge Schneider <serge@raspberrypi.org>

rpi-poe-fan: fix def_pwm1 writes
Signed-off-by: NSerge Schneider <serge@raspberrypi.org>
Signed-off-by: NFang Yafen <yafen@iscas.ac.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>