fix start of cc2420: avoid infintie wait for stable oscillator interrupt#4

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dmolteni wants to merge 3 commits intotinyos:tinyos-2_1_2from

dmolteni:tinyos-2_1_2

Commits on Sep 24, 2014

fix start of cc2420: avoid infintie wait for stable oscillator interrupt
davidemolteni
committed

Commits on Jun 11, 2015

fix tos-bsl to se opton about test and reset
davidemolteni
committed

Commits on Feb 19, 2016

fix tos-bsl to be used also with pyserial 3.0.1
davidemolteni
committed