Exercise 1 of Lesson 5 of nRF Connect SDK Intermediate has an error

[Rick Cai]

https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-5-serial-peripheral-interface-spi/topic/exercise-1-10/

spi frequency is 1000000 in DTS overlay file.

But in the article, it said the frequency is 125000 after initialization. This is incorrect.

I printed out "frequency" in console. It is 1000000.