brcmfmac: A typo fix

s/revsion/revision/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210323043657.1466296-1-unixbhaskar@gmail.com

drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.h

@@ -28,7 +28,7 @@ struct brcmf_usbdev {
 	int ntxq, nrxq, rxsize;
 	u32 bus_mtu;
 	int devid;
-	int chiprev; /* chip revsion number */
+	int chiprev; /* chip revision number */
 };
 
 /* IO Request Block (IRB) */