bacon: Use old naming for LG panel

 * Bootloader is still sending the old name, revert the DT change for
   now to fix display detection on this hardware.

Change-Id: I850de726de2b96615ecb2763ec80b085a9102352
(cherry picked from commit 5bfaa7fe87e3d6dbc413f4ad3909a0f8e161f94d)