Importing from usrp_mpm.rpc_server imports a lot of dependencies which are
unnecessary if the rpc_server functionality is not actually needed.
Move the decorator functions to a new file rpc_utils.py and import only
from this file inside periph_manager.
usrp_hwd.py needs additional dependencies which are specifically imported:
- usrp_mpm.rpc_server.spawn_rpc_process
- usrp_mpm.discovery.spawn_discovery_process
This adds an updateable_components overridable dictionary into the
daughterboards base class.
On X410, because some of the FPGA compatibility stems from DB-specific
components, they are moved into class ZBX.
- Refactoring component (FPGA, DTS) updating functions out of
n3xx.py into their own components.py. The ZynqComponent class now
defines the methods to update these two components.
- Adding super().__init__() to the PeriphManagerBase class. This is
needed to get the multiple inheritance used in N3XX now to work, and
(apparently) good Python practice.
