tcl/target: Add support for TI MSPM0

tcl/target: Add support for TI MSPM0

Add basic support for Texas Instruments MSPM0L, C and G family of
Cortex-M0 based micro-controllers.

Change-Id: If2b5b1eca001f74d501ede67ec621c7497548a85
Co-developed-by: Henry Nguyen <h-nguyen8@ti.com>
Signed-off-by: Henry Nguyen <h-nguyen8@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8385
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: zapb <dev@zapb.de>