white space diffs.
introduce GAP::getAddress() to fetch the MAC address.
simplify BLE_GAP_ADDR_LEN to ADDR_LEN defined in Gap.h
white space diffs
minor changes pulled in from Nordic's latest SDK
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add inline assembly for bootloader to be compiled with arm-gcc.
minor typos in comment blocks.
69:61da91a52bd6
Revert "minor changes pulled in from Nordic's latest SDK"

This reverts commit c35f80d30999c6cbf8ba87f8dd07af2f2309507c.