[radio] add OT_RADIO_CAPS_RX_ON_WHEN_IDLE capability (#9554)
#465
| Job | Run time |
|---|---|
| 10m 31s | |
| 12m 24s | |
| 8m 30s | |
| 9m 58s | |
| 20m 26s | |
| 9m 1s | |
| 10m 7s | |
| 26m 52s | |
| 26s | |
| 11s | |
| 1h 48m 26s |