Brian,
Just one further attempt I’ve tried and again if this helps anyone figure this out I would love to know how they did it.
I tried installing the Linux-generic-headers & Linux-generic packages thinking if I could get the board to load that kernel I would have the headers I needed. They installed but even trying multiple times, I could not get the board to re-flash and use the new generic image. I tried using “aptitude –safe-upgrade” and apt and neither wanted to work.
still getting
david@espressobin/~:uname -a
Linux espressobin.localdomain 4.4.8-armada-17.02.1-gb8d7d22 #1 SMP PREEMPT Tue Feb 7 14:04:11 PST 2017 aarch64 aarch64 aarch64 GNU/Linux