drivers: can: stm32: timing_max parameters are not correct

[str4t0m]

Describe the bug
The timing_max parameters defined in the stm32 bxCAN driver don't match the register description in the reference manuals.

• sjw does have only 2 bits representing 1 to 4 tq.
• phase_seg1 and phase_seg2 max is one tq higher.

Expected behavior
I have checked the following reference manuals and all have only 2 SJW bits and can use all possible TS1 and TS2 values in the defined bit range.

• RM0090: STM32F405, F415, F407, F417, F427, F437 AND F429
• RM0008: STM32F101, F102, F103, F105, F107 advanced arm-based mcus
• RM0351, RM0394: all STM32L4
• RM0091: all STM32F0 with CAN support

Impact
Users might be misled to configure unsupported timing parameters.

Environment (please complete the following information):

• OS: Linux
• Toolchain Zephyr SDK
• Commit SHA: d11c0a1

Additional context
Issue discovered through code inspection.