Some SoCs have variants which are mostly the same, but use a different
chip id (or not). Add code for detecting them and handling them as
their standard counterparts.
This adds support for e.g. BCM6369.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39269 3c298f89-4303-0410-b956-a3cf2f4a3e73