RCC Exported Constants

Modules
	PLL Clock Source
	Oscillator Type
	HSE Config
	LSE Config
	HSI Config
	LSI Config
	PLL Config
	System Clock Type
	System Clock Source
	System Clock Source Status
	AHB Clock Source
	APB1 APB2 Clock Source
	RTC Clock Source
	MCO Index
	MCO Clock Prescaler
	Interrupts
	Flags
	Elements values convention: XXXYYYYYb.