core: event: add mk_event_channel_destroy prototype definition.
core: event: add mk_event_channel_destroy prototype definition.

Add mk_event_channel_destroy for closing the file descriptors created by
mk_event_channel_create.

Signed-off-by: Phillip Whelan <e888d2bd6f13f82caa51a37c03d034c76f661ba3@calyptia.com>

monkey/monkey,monkey/monkey,monkey/monkey,monkey/monkey,monkey/monkey,monkey/monkey