staging: vt6656: Prefer using BIT Macro

Replace bit shifting on 1 with the BIT(x) Macro

The semantic patch used to find this is:
@@ int g; @@

-(1 << g)
+BIT(g)
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/card.c

@@ -473,7 +473,7 @@ int vnt_ofdm_min_rate(struct vnt_private *priv)
 	int ii;
 
 	for (ii = RATE_54M; ii >= RATE_6M; ii--) {
-		if ((priv->basic_rates) & ((u16)(1 << ii)))
+		if ((priv->basic_rates) & ((u16)BIT(ii)))
 			return true;
 	}