V01.04.02

Release Note:

• Added support for SM SENS DI, SM 1231 4AI, SM 1221 8DI, and SM 1223 DC DI16 DQ16 RLY modules.
• Introduce iot2050-module-firmware-update tool for module firmware updates.
• Bugfixes for firmware update tool and add two default U-Boot environments.
• Disable lock-step mode for all iot2050 boards.
• Update rootfs partition handling and Isar layer updates.