hw/arm/stm32f405: Add RCC device to stm32f405 SoC Add the reset and clock controller device to the stm32f405 SoC. Signed-off-by: Roman Cardenas Rodriguez <rcardenas.rod@gmail.com> [PMM: tweak commit message] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>