Photon/P1: adds system-part2 v0.7.0-rc.4 as a dependency of system-part1

[avtolstoy]

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Problem

Due to the introduction of #1421, we will need to have an intermediate release that will enable OTA/Ymodem upgrades to the system firmware with WiFi firmware compression (0.8.0-rc.1). The support for this has been included into 0.7.0-rc.4 (#1420). When upgrading from < 0.7.0-rc.4 right now, the device will be stuck in hardfault state, immediately after system-part1 is flashed.

Solution

In order to avoid that, 0.8.0-rc.1 system-part1 needs to have a dependency on 0.7.0-rc.4 system-part2.

Steps to Test

1. Have < 0.7.0-rc.4 system firmware running on the device
2. Make sure SYSTEM_PART1_MODULE_VERSION, SYSTEM_PART2_MODULE_VERSION, SYSTEM_PART3_MODULE_VERSION in system_module_version.mk are >= 0.8.0-rc.1 (300) and build the firmware
3. Flash system-part1.bin from step #2
4. Verify that the device is running normally and provided system-part1 has not been applied
5. Upgrade system firmware running on the device to 0.7.0-rc.4
6. Flash system-part1.bin from step #2
7. Verify that the device is running normally and provided system-part1 module has been applied

Example App

N/A

References

• [Photon/P1] WiFi firmware blob compression #1421
• [0.7.x] KRACK WPA2 security bugfix  #1420
• [CH8759]

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Completeness

• User is totes amazing for contributing!
• Contributor has signed CLA (Info here)
• Problem and Solution clearly stated
• Run unit/integration/application tests on device
• Added documentation
• Added to CHANGELOG.md after merging (add links to docs and issues)

[m-mcgowan]

nice :-)