How to resize the SPL partition to 40000 from the 20000 in QSPL flash

[Samderbol]

The size of the SPL partition (128KiB) on my VF2 SBC is smaller than what the current firmware requires. Therefore, I had to write a truncated SPL to the SPI NOR FLASH when flashing version 3.6.1. This resulted in an incorrect configuration.

To resolve this issue, I need to resize the SPL partition from 20,000 to 40,000 in order to accommodate the entire SPL (bootloader) within the partition. ,How can I resize the SPL partition to 20000 from the 40000 to put the whole spl into spl partition?