--- Comment #11 from Steffen Winterfeldt firstname.lastname@example.org --- Current TW, for example has:
# modinfo -F firmware brcmfmac.ko.xz | head -2 brcm/brcm/brcmfmac*-pcie.*.txt brcm/brcm/brcmfmac*-sdio.*.txt
This looks entirely wrong to me.
That said, I'm actually not sure what drags in *clm_blob currently.
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.