Comment 258 for bug 1383184

Eureka! It works! If you're still having issues and had tried adding the firmware yourself before, I had to remove it:
1. sudo apt-get -y purge ath10k-dkms
2. rm -rf /lib/firmware/ath10k/
3. sudo dpkg --install ath10k-dkms_1.1_all.deb
4. {restart}
5. {rejoice}

Also of note, I removed my USB wifi adapter before the above steps. I don't know if that had any bearing on it, but just in case I though I'd mention it.