sys/net/gnrc/sock: release pktsnip when message queue is full
sys/net/gnrc/sock: release pktsnip when message queue is full

OlegHahm/RIOT,miri64/RIOT,jasonatran/RIOT,ant9000/RIOT,basilfx/RIOT,kYc0o/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,basilfx/RIOT,miri64/RIOT,authmillenon/RIOT,kYc0o/RIOT,OlegHahm/RIOT,authmillenon/RIOT,basilfx/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,basilfx/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,kaspar030/RIOT,OlegHahm/RIOT,authmillenon/RIOT,OTAkeys/RIOT,kYc0o/RIOT,miri64/RIOT,miri64/RIOT,OTAkeys/RIOT,kaspar030/RIOT,kaspar030/RIOT,basilfx/RIOT,ant9000/RIOT,OTAkeys/RIOT,kYc0o/RIOT,authmillenon/RIOT,ant9000/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,miri64/RIOT,RIOT-OS/RIOT,ant9000/RIOT,jasonatran/RIOT,kaspar030/RIOT,kaspar030/RIOT,ant9000/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,jasonatran/RIOT