Based on the context provided, it seems like you are trying to use the MCU-Link with the i.MXRT1024 MCU in MCUXpresso IDE and are having trouble finding the flash driver. The flash driver is typically included in the SDK for the specific MCU. In this case, you should look for it in the SDK for the i.MXRT1024.
However, it's important to note that the flash driver may not be listed under the 'Software' section as you've mentioned. It might be included as part of the MCUXpresso IDE or the SDK package for the i.MXRT1024. If you are unable to find it, it's possible that the driver is not available or not supported for this specific MCU with the MCU-Link.
As a workaround, you can try using a different debug probe that is compatible with the i.MXRT1024 MCU. For example, the P&E Micro Multilink has been mentioned in the context, but it's noted that it does not support the RT family of MCUs. Therefore, it's crucial to ensure that the debug probe you are using is compatible with the i.MXRT1024 MCU.