dts: arm: stm32 devices with hsi48 clock

Add the HSI48 clock to the stm32 devices that have this
clock signal.
Within a stm32 family, only few might have the
RCC_HSI48_SUPPORT.
STM32WB has a CLK48 mux.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
15 files changed