interrupt definition added for k60 UARTs (only the definition in order
to compile successfully)
Merge branch 'master' of https://github.com/ciaa/Firmware
Revert "interrupt definition added for k60 UARTs (only the definition in order to compile successfully)"

This reverts commit a9f0bd2639c2ece25f4a036ef6822b875e3c61e8.
UARTs interrupt definition added (only the definition in order to
compile successfully)