include: zephyr: dt-bindings: clock: use STM32 common clock source macros

Replace STM32_DOMAIN_CLOCK() and STM32_MCO_CFGR() macros in
stm32 DT clock bindings header file with the common macro
STM32_DT_CLOCK_SELECT().

By the way, add parentheses on argument where it mas missing.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>