cpufreq-info lists CPU hardware limit as 800Mhz, overclocking not possible?

[grubles]

I would like to try and overclock my Armory for testing purposes. This is on the Debian Stretch Armory image.

root@usbarmory:/home/usbarmory# cpufreq-info 
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to [email protected], please.
analyzing CPU 0:
  driver: cpufreq-dt
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 61.0 us.
  hardware limits: 167 MHz - 800 MHz
  available frequency steps: 167 MHz, 400 MHz, 800 MHz
  available cpufreq governors: conservative, userspace, powersave, ondemand, performance
  current policy: frequency should be within 167 MHz and 800 MHz.
                  The governor "userspace" may decide which speed to use
                  within this range.
  current CPU frequency is 167 MHz (asserted by call to hardware).