stm32cube: update stm32f4 to cube version V1.27.0

Update Cube version for STM32F4xx series
on https://github.com/STMicroelectronics


from version v1.26.2
to version v1.27.0

Added LICENSE.md as software component license.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>