8250_pnp: add support for "LG C1 EXPRESS DUAL" machines

The following is an extra entry to enable the touch screen on the new LG
C1 EXPRESS DUAL machine.

Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>