Add missing DYNALIB_FNs for os_thread_{wait,notify}

[metcalf]

Problem

/Users/andrew/code/supply_ventilation//src/DisplayTask.cpp:51: undefined reference to `os_thread_notify'
/Users/andrew/.particle/toolchains/gcc-arm/10.2.1/bin/../lib/gcc/arm-none-eabi/10.2.1/../../../../arm-none-eabi/bin/ld: ../../../build/target/user/platform-6-m/supply_ventilation//libuser.a(DisplayTask.o): in function `DisplayTask::_taskFun()':
/Users/andrew/code/supply_ventilation//src/DisplayTask.cpp:59: undefined reference to `os_thread_wait'
collect2: error: ld returned 1 exit status

Solution

Added missing DYNALIB_FN entries for os_thread_{wait,notify}

Steps to Test

I assume existing compilation/tests would break if I

Example App

N/A

References

Completeness

• [x] 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)

[metcalf]

Hmm, maybe this isn't an API that's intended to be exposed directly given the existence of the Thread class? Should Thread support these methods?