arm64: dts: rockchip: enable wifi module at sdio0 on rockpro64

arm64: dts: rockchip: enable wifi module at sdio0 on rockpro64

RockPro64 supports an Ampak AP6359SA based wifi/bt combo module.
The BCM4359/9 wifi controller in this module is connected to sdio0,
enable this interface.

Use the in-band sdio irq instead of the out-of-band wifi_host_wake_l
signal since the latter is not working reliably on this board (probably
due to it's PCIe WAKE# connection).

Signed-off-by: Soeren Moch <smoch@web.de>
Link: https://lore.kernel.org/r/20191218223523.30154-2-smoch@web.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>