Fix: Corrected function pointer prototype and build issues#607

kilograham merged 1 commit intoraspberrypi:developraspberrypi/pico-examples:developfrom

fmahon:bugfix/FIX_build_issues_for_multicore_runnerfmahon/pico-examples:bugfix/FIX_build_issues_for_multicore_runnerCopy head branch name to clipboard