Update ctucanfd_base.c

[phantomrsw]

Hello.
There is an error in the driver code, in the function ctucan_set_secondary_sample_point of the file ctucanfd_base.c.
According to the datasheet (see section 3.1.46 CTU_CANFD_Datasheet.pdf), Secondary Sampling Point is not used when SSP_SRC = 0b01. This is true when the bit rate is less than or equal to 1 Mbit/s. But if the CAN FD interface works with a higher data bit rate, for example 4 or 5 Mbit/s, then the transceiver delay value becomes significant and you need to use SSP_SRC = 0x0 or 0x2.
However, in the driver for bitrate greater than 1 Mbit/s
ssp_cfg |= FIELD_PREP(REG_TRV_DELAY_SSP_SRC, 0x1);