brcm: rename firmware names expressing host interface type

The firmware name used in brcmfmac for SDIO devices was named
generically as brcmfmac-sdio.bin. To use the brcmfmac SDIO driver
the user had to copy the appropriate firmware to brcmfmac-sdio.bin.

This turned out to be inconvenient for developers switching different
devices on their system so brcmfmac was changed to use chip specific
filenames according format brcmfmac<chipid>-sdio.bin. This patch renames
the existing SDIO firmware files to match this format.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

WHENCE

@@ -1694,9 +1694,9 @@ Driver: brcmfmac - Broadcom 802.11n fullmac wireless LAN driver.
 
 File: brcm/bcm4329-fullmac-4.bin
 File: brcm/brcmfmac43236b.bin
-File: brcm/brcmfmac4329.bin
-File: brcm/brcmfmac4330.bin
-File: brcm/brcmfmac4334.bin
+File: brcm/brcmfmac4329-sdio.bin
+File: brcm/brcmfmac4330-sdio.bin
+File: brcm/brcmfmac4334-sdio.bin
 
 Licence: Redistributable. See LICENCE.broadcom_bcm43xx for details.