--- Comment #12 from Ivan Ivanov firstname.lastname@example.org --- (In reply to Steffen Winterfeldt from comment #11)
From here you can see that only brcmfmac43456-sdio.clm_blob file is present, while the driver is looking for brcmfmac43455-sdio.clm_blob.
As said, please check your config.
Hm, not sure which config you are referring. This is about openSUSE-Leap-15.3-DVD-aarch64.iso