brcmfmac: use chipname in brcmf_fw_alloc_request() for error path as well

The local variable chipname is string representation of chip id and revision
which is printed in the good flow of brcmf_fw_alloc_request(). Also use it
for the error path, ie. for unknown/unsupported devices.
Reviewed-by: NHante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: NPieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c

@@ -719,8 +719,10 @@ brcmf_fw_alloc_request(u32 chip, u32 chiprev,
 			break;
 	}
 
+	brcmf_chip_name(chip, chiprev, chipname, sizeof(chipname));
+
 	if (i == table_size) {
-		brcmf_err("Unknown chipid %d [%d]\n", chip, chiprev);
+		brcmf_err("Unknown chip %s\n", chipname);
 		return NULL;
 	}
 
@@ -729,8 +731,6 @@ brcmf_fw_alloc_request(u32 chip, u32 chiprev,
 	if (!fwreq)
 		return NULL;
 
-	brcmf_chip_name(chip, chiprev, chipname, sizeof(chipname));
-
 	brcmf_info("using %s for chip %s\n",
 		   mapping_table[i].fw_base, chipname);