Bug#984844: 984844 was fixed by upgrading firmware-brcm80211

Control: notfound -1 20210208-4 #984844 is not observed in 20210208-4 in testing/Bullseye. Ryutaroh

Bug#984844: 984844 was fixed by upgrading firmware-brcm80211

Control: reassign -1 firmware-brcm80211 20201218-3 Control: close -1 20210315-1 The symptom #984844 disappeared by upgrading firmware-brcm80211 from 20201218-3 to 20210315-1. Ryutaroh