arm64: config: librem5: Enable HKS rfkill

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
2 jobs for mrs/rfkill in 73 minutes and 51 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #328013
librem5
build:aarch64

00:33:30

passed #328014
librem5:arm64
build:deb

01:02:16