Some ideas. Main issues will be weight, battery life, connecting distance
Pretty sure any Drone/Quad that can support the weight of a camera / go pro should support the weight of below examples.
Odroid + Ext Battey + Tplink
^ Heaviest solution more capable functionality (full os)
Tplink + Tplink
^ Less heavy, build in battery + built in wifi, supports openwrt
Cellphone running linux in chroot + Tplink running on OTG
Lightest solution, build in battery + cell modem + build in wifi + gps + camera