librem5-evk: Make using the built in LCD the default

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

Closes: #5
2 jobs for unbreak-panel in 37 minutes and 52 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #9656
librem5
build:aarch64:Image

00:37:52

passed #9657
librem5
build:aarch64:deb

00:25:35