The CRDA (Central Regulatory Domain Agent) utility has been used as a
user space helper to load regulatory information for WiFi drivers.
However, since Linux 4.15 the kernel can load the regulatory information
directly from a signed firmware file "regulatory.db".
The regulatory.db file is provided by the WIRELESS_REGDB package, which
has been already installed since its a dependency of CRDA.
Drop CRDA and select WIRELESS_REGDB package explicitly to make sure the
regulatory.db file is present.
* Add Ralink rt27xx/rt28xx/rt30xx firmware (#1242)
Add Ralink firmware for devices which have the driver enabled. The
firmware's are rather small at 20KiB in total.
* Remove Ralink and other WiFi drivers from Tinker Board
The board has on-board WiFi, no need for Ralink drivers to be enabled.
* Add Ralink WiFi drivers and firmware to ODROID boards
