drivers/at86rf2xx: simplify code#6

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thomaseichinger wants to merge 2 commits intoDipSwitch:pr/fix/at86rf2xx_setstatefrom

thomaseichinger:DipSwitch-pr/fix/at86rf2xx_setstate

Commits on May 31, 2017

driver/at86rf2xx: Fix possible race condition where at86rf2xx_configure returns to the wrong state if waited on finished state in at86rf2xx_setstate
DipSwitch
committed

Commits on Jun 19, 2017

drivers/at86rf2xx: simplify code
thomaseichinger
committed