Put InterruptLock (from interrupts.h) into namespace esp8266#6225

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d-a-v merged 1 commit intoesp8266:masterfrom

dok-net:espswserialapi

Jun 25, 2019

Commits on Jun 24, 2019

Put InterruptLock (from interrupts.h) into namespace esp8266 to fix now and future
dok-net
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