staging: wilc1000: replace redundant computations with 0

Shifting and masking strHostIfSetMulti->enabled is redundant since
enabled is a bool and so all the shifted and masked values will be
zero. Replace them with zero to simplify the code.

Detected by CoverityScan, CID#1339458 ("Bad shift operation") and
CID#1339506 ("Operands don't affect result").

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/host_interface.c

@@ -2420,9 +2420,9 @@ static void Handle_SetMulticastFilter(struct wilc_vif *vif,
 
 	pu8CurrByte = wid.val;
 	*pu8CurrByte++ = (strHostIfSetMulti->enabled & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 8) & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 16) & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 24) & 0xFF);
+	*pu8CurrByte++ = 0;
+	*pu8CurrByte++ = 0;
+	*pu8CurrByte++ = 0;
 
 	*pu8CurrByte++ = (strHostIfSetMulti->cnt & 0xFF);
 	*pu8CurrByte++ = ((strHostIfSetMulti->cnt >> 8) & 0xFF);