WIP: arm64: dts: librem5: Hog the wifi-en gpio

This makes sure we don't abuse the LED framework and it's enabled early enough to make wifi work.

Closes: #264 (closed)

Signed-off-by: Guido Günther guido.gunther@puri.sm

/cc @angus.ainslie to avoid duplication (using rfkill would be even nicer but this brings back the status quo so we can release 5.11)