Fix the slow wake-up of STM32U5 from deep sleep#489

Merged

multiplemonomials merged 2 commits intombed-ce:masterfrom

wdx04:stm32u5-wakup-freq

Aug 26, 2025

Commits on Aug 25, 2025

set MSI clock to RCC_MSIRANGE_0 (48MHz) for STM32U5 after wake-up from deep sleep
wdx04
committed

Commits on Aug 26, 2025

modify the hardcoded HSICalibrationValue(16) to RCC_HSICALIBRATION_DEFAULT
wdx04
committed