How to increase the rate of sQSPI to 32MHz

SDK: nRF Connect SDK v3.0.2

DK: nRF54L15-DK

Sample: spi_flash

3513.nrf54l15dk_nrf54l15_cpuapp_sqspi.overlay
8304.nrf54l15dk_nrf54l15_cpuapp.overlay

default: 

mspi-max-frequency = <DT_FREQ_M(8)>;

If I change it to 32, it will printf these log:

[00:00:00.003,384] <err> flash_mspi_nor: Failed to change IO mode: -5

[00:00:00.010,584] <err> flash_mspi_nor: Failed to switch to default io mode: -5

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