ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux

ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux

commit 2acb5c301edf39ab6d066687ce70da1166e4de9e upstream.

Driver core sets "default" pinmux on on probe and CAN driver
sets "sleep" pinmux during register. This causes a small window
where the CAN pins are in "default" state with the DCAN module
being disabled.

Change the "default" state to be like sleep so this glitch is
avoided. Add a new "active" state that is used by the driver
when CAN is actually active.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>