kernel: add CAN modules

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39032 3c298f89-4303-0410-b956-a3cf2f4a3e73
imx6: add flexcan support

backport upstream changes to 3.10:
 - 0060-flexcan.patch:
   - add flexcan pinctrl and devicetree config
 - 0061-can-flexcan-use-correct-clock-as-base-for-bit-rate-c.patch
   - fix a clock issue
 - 0062-ARM-i.MX6q-fix-the-wrong-parent-of-can_root-clock.patch
   - fix a clock issue

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39033 3c298f89-4303-0410-b956-a3cf2f4a3e73
imx6: add canbus support for Ventana boards

GW5400, GW5300, and GW5200 have CAN bus option.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39034 3c298f89-4303-0410-b956-a3cf2f4a3e73