Commit 51c1e9b5 ("auxdisplay: Move panel.c to drivers/auxdisplay folder")
moved the file, but the MAINTAINERS reference was not updated.

Link: https://lore.kernel.org/lkml/20180928220131.31075-1-joe@perches.com/Reported-by: NJoe Perches <joe@perches.com>
Signed-off-by: NMiguel Ojeda <miguel.ojeda.sandonis@gmail.com>