[C25] Add kernel dts files for C25 board
This MR adds initial support for C25 Q7 module based on 4.x BSP.
In addition a following changes were added:
- fixed various error and warning messages in dmesg
- disabled SOC watchdog and reassigned WDOG_B to GPIO0
- added overlay for enabling OTG client
STM wathcdog will be added via separate MR.
Other MRs:
- seco-base: clea-os/seco-base!97
- meta-seco-imx: clea-os/layers/seco/meta-seco-imx!281
- u-boot-seco-imx:u-boot-seco-imx!159
- imx-mkimage: clea-os/bsp/nxp/tools/imx-mkimage!54
Edited by Mikhail Vanyulin