default or selected kernelversion does not have config value CONFIG_RADIO_MAESTRO.
Result is shown for kernelversion 5.4.69

Maestro on board radio

modulename: radio-maestro.ko


Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Radio Adapters
└─>Maestro on board radio
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here to directly support the on-board radio tuner on the
Maestro 2 or 2E sound card.

In order to control your radio card, you will need to use programs
that are compatible with the Video For Linux API. Information on
this API and pointers to "v4l" programs may be found at

To compile this driver as a module, choose M here: the
module will be called radio-maestro.

source code: