* update chipidea dcd, remove manual ep_count and use DCCPARAMS to get number of endpoint instead
* add dcd dcache for chipidea
* add cmake for lpc18
* add makefile build for mcx
* use fork of mcu sdk
* fix ci build with nrf
* flash rp2040 with openocd
- Examples should be CMake buildable from their own subdirectory; such a build will error out based on
matching .skip.MCU_xxx or a mismatched .only.MCU_
- It should be possible to build from a higher level and use .skip.MCU_ and .only.MCU_ to filter which
examples get built
- The intention is for the CMakeLists.txts in the examples to be non family specific and without MCU based IFs. I have
started this work, but am not really sure the state of the esp32 stuff; in any case the plan is to have
everything encapsulated in the FAMILY/family.cmake
- pico_examples now just includes examples/device/CMakeLists.txt and examples/host/CMakeLists.txt directly, as they
also build correctly when included from there.
Note that .skip.MCU_ for esp32 in the directories it wasn't previously avaiable has not been added, as the .skip is common to the regular Makefile builds also. It isn't clear whether these examples should build for esp32, but if not .skip should be added.
