stm32mp-t10xx: Improve usb otg, spi and adc support

Related issues

• Change dr_mode for otg usb interface from device to otg (https://git.kontron-electronics.de/sw/ked/plan/plan-yocto/-/issues/923)
• Add ADC board scale values to device tree (https://git.kontron-electronics.de/sw/ked/plan/plan-yocto/-/issues/912)
• Add Kontron compatible for userspace spi interfaces (https://git.kontron-electronics.de/sw/ked/plan/plan-yocto/-/issues/919)