Include wifi/bluetooth firmware wanted by orin-agx

[jmbaur]

Description of changes

Also don't use linkFarm to create the firmware derivations since that ends up requiring all of linux-firmware to exist in the nixos system's closure.

Testing

Tested on an orin-agx-devkit.

Before:

[   24.437081] rtw_8822ce 0001:01:00.0: Adding to iommu group 9
[   24.439144] rtw_8822ce 0001:01:00.0: Direct firmware load for rtw88/rtw8822c_fw.bin failed with error -2
[   24.439152] rtw_8822ce 0001:01:00.0: failed to request firmware
[   24.439182] rtw_8822ce 0001:01:00.0: Direct firmware load for rtw88/rtw8822c_wow_fw.bin failed with error -2
[   24.439184] rtw_8822ce 0001:01:00.0: failed to request firmware
[   24.441513] rtw_8822ce 0001:01:00.0: failed to load firmware
[   24.441515] rtw_8822ce 0001:01:00.0: failed to setup chip efuse info
[   24.441517] rtw_8822ce 0001:01:00.0: failed to setup chip information
[   24.446324] rtw_8822ce: probe of 0001:01:00.0 failed with error -22

After:

[   25.779444] rtw_8822ce 0001:01:00.0: Adding to iommu group 9
[   25.797123] rtw_8822ce 0001:01:00.0: Firmware version 9.9.4, H2C version 15
[   25.812958] rtw_8822ce 0001:01:00.0: Firmware version 9.9.15, H2C version 15
[   25.949777] rtw_8822ce 0001:01:00.0 wlP1p1s0: renamed from wlan0