drivers: clock_control: stm32: fix typo

Use a code spell-checking tool to scan and correct spelling errors in
the following files:
- clock_stm32_ll_common.c
- clock_stm32_ll_h5.c
- clock_stm32_ll_h7.c
- clock_stm32_ll_u5.c
- clock_stm32_ll_wba.c

Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>