android.permission.CAPTURE_AUDIO_HOTWORD is, quoting frameworks/base/core/res/AndroidManifest.xml, “Not for use by third-party applications” and, as a result, it is marked with a protection level of “signature|system”. Thus, in addition to the usual manifest checks it will also require the the application have the right signature (i.e. it is signed using the same signature as base OS) or be installed in /system.
In practice that means your application will not be able to run on a system unless you know the build signature and/or you have root access.
I think, for the Dragonboard 410c, you should have easy root access which means the following instructions may allow your application to run on your development board: