[mbed-os-5.15] Nanostack release to mbed-os-5.15 branch#12813

Merged

0xc0170 merged 6 commits intoARMmbed:mbed-os-5.15from

artokin:nanostack_relase_to_mbed_os_5_15

Apr 22, 2020

Commits on Apr 16, 2020

Squashed 'features/nanostack/coap-service/' changes from e5e0c138e6..5aa54b8e62
Arto Kinnunen
committed
Merge commit '4daaaf126d9dfbfcbe638753573139d95442da1f' into mbed-os-5.15
Arto Kinnunen
committed
Squashed 'features/nanostack/sal-stack-nanostack/' changes from fb7413b846..cc03296c27
Arto Kinnunen
committed
Merge commit 'd104328f556c60ee09bb316ffc700ba8f1deca19' into mbed-os-5.15
Arto Kinnunen
committed
Update S2LP 802.15.4 RF driver
Arto Kinnunen
committed
Update Atmel 802.15.4 RF driver
Arto Kinnunen
committed