clock: stm32f4: Add some missing clocks

Add several missing clocks that are used by other members of the STM32F4
family. This is needed to add support for various hardware, like UART9
and UART10 on STM32F413.

Change-Id: I6f1a04ddece90a04e31a1710065545179b0e530d
Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>