Add support for the targets stm32mp21x, stm32mp23x and stm32mp25x.
Add support for the boards stm32mp235f-dk and stm32mp257f-dk.
The board stm32mp215f-dk has no configuration file as it only
provides a generic JTAG/SWD connector for the stm32mp21x SoC.
Change-Id: I0256bebd8a5d5600066d8ae191d83344a35d3d37
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8985
Tested-by: jenkins
Reviewed-by: zapb <dev@zapb.de>
