add ATH9000 M.2 WIFI driver

hc

2024-05-09 b9d5c334faa47a75f1f28e72d203fc0334e8471d

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ST-Ericsson COH 901 571/3 GPIO controller
 
Required properties:
- compatible: Compatible property value should be "stericsson,gpio-coh901"
- reg: Physical base address of the controller and length of memory mapped
  region.
- interrupts: the 0...n interrupts assigned to the different GPIO ports/banks.