phy: phy-can-transceiver: Add dual channel support for TJA1048

phy: phy-can-transceiver: Add dual channel support for TJA1048

- Introduce new flag CAN_TRANSCEIVER_DUAL_CH to indicate the phy has two
  channels.
- Alloc a phy for each channel
- Support TJA1048 which is a dual high-speed CAN transceiver with sleep
  mode supported.
- Add can_transceiver_phy_xlate for parsing phy

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://patch.msgid.link/20251001-can-v7-3-fad29efc3884@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>