Build on 64-bit Raspbian

[mtlynch]

Now that Raspbian 64-bit is available, we should make sure the role is compatible.

A user reported a successful install, but the HID driver is failing:

tiny-pilot/tinypilot#906

One issue I know is that we're installing the HID driver for the wrong architecture, so we need to add a check on this play to make sure the architecture is armv7l and not aarch64.