linux-phytec-fsl

MLK-12016-5 dts: imx6sx-sabreauto: add flexcan support

The CAN transceiver on MX6SX Sabreauto board seems in sleep mode
by default after power up the board. User has to press the wakeup
key on ARD baseboard before using the transceiver, or it may not
work properly when power up the board at the first time(warm reset
does not have such issue).

This patch operates the wake pin too besides stby/en pins by chaining
them together in regulator mode.

Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com>