RCC ¶

For the RCC driver, we have two LL files: stm32ynxx_ll_rcc.h and stm32ynxx_ll_bus.h. It is noted that in HAL2, there are no changes to stm32ynxx_ll_bus.h. Additionally, new coding rules have been applied to stm32ynxx_ll_rcc.h, and the LL source file has been removed. This section can serve as a reference for changes to the LL RCC driver.