Add nRF5 SDK support

[maxgerhardt]

Equivalent to platformio/platform-nordicnrf51#24 from the nRF51 platform.

Having the native vendor nRF5 SDK framework supported would be great, many users have asked for that over and over again of the last time.

[pingdan32]

Any plans?

[TauqirH]

No more NRF SDK , society has progressed past the need for NRF SDK.

[TauqirH]

+1

[ciband]

+1

[wiesener]

+1

[tomaszduda23]

Some project might be build that way. It is just basic support. Most likely it there are still a lot of things missing.

[env:nrf52_dk]
platform = platformio/nordicnrf52@10.3.0
framework = zephyr
board = nrf52_dk
platform_packages =
    platformio/framework-zephyr@https://github.com/tomaszduda23/framework-sdk-nrf
    platformio/toolchain-gccarmnoneeabi@https://github.com/tomaszduda23/toolchain-sdk-ng