The latest Ingenic CPUs (e.g. JZ4780) use new vendor ID.

Based on commit from https://github.com/MIPS/CI20_linux/tree/ci20-v3.16

  commit 00b672a
  Author: Paul Burton <paul.burton@imgtec.com>
  Date:   Mon Jul 8 12:14:28 2013 +0100

      MIPS: add (another) Ingenic vendor ID

      Ingenic have switched to a new vendor ID for the Xburst core used in
      their current SoCs such as the jz4780. Add this vendor ID and handle it
      in addition to their former vendor ID.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>