drivers: clock_control: stm32h7 add preprocessor clock check

Adds preprocessor clock feasibility check to avoid setting
too high clocks to SYSCLK,AHB,APBx buses.

Also checks if CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC
matches with the desired clock configuration by
the M7 core.

Signed-off-by: Jeremy LOCHE <lochejeremy@gmail.com>