[mbed-os-5.15] Nanostack release v12.8.0#14170

Merged

0xc0170 merged 7 commits intoARMmbed:mbed-os-5.15from

artokin:nanostack_release_12_8_0_to_5_15

Feb 2, 2021

Commits on Jan 21, 2021

802.15.4 Atmel RF driver update (v3.3.4)
Arto Kinnunen
committed
Squashed 'features/nanostack/sal-stack-nanostack-eventloop/' changes from b560a9da36..d182fa4b3a
Arto Kinnunen
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Squashed 'features/frameworks/nanostack-libservice/' changes from 67d7b93ec6..a526cc3f41
Arto Kinnunen
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Squashed 'features/frameworks/mbed-trace/' changes from 6ced9711c4..b98f6a9050
Arto Kinnunen
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Squashed 'features/nanostack/coap-service/' changes from 5aa54b8e62..4a126bd278
Arto Kinnunen
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Squashed 'features/nanostack/sal-stack-nanostack/' changes from 09d9e24f2d..3183d87e41
Arto Kinnunen
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Move files back to original locations
Arto Kinnunen
committed