Staging: rtl8192u: Use BIT macro

Use BIT macro, as kernel provides the macro for improving uniform
and more readable way to define these constants.

Issue suggested by Coccinelle.
Signed-off-by: Madhumitha Prabakaran <madhumithabiw@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8180_93cx6.c

@@ -125,21 +125,21 @@ int eprom_read(struct net_device *dev, u32 addr)
 
 	if (priv->epromtype == EPROM_93c56) {
 		addr_str[7] = addr & 1;
-		addr_str[6] = addr & (1 << 1);
-		addr_str[5] = addr & (1 << 2);
-		addr_str[4] = addr & (1 << 3);
-		addr_str[3] = addr & (1 << 4);
-		addr_str[2] = addr & (1 << 5);
-		addr_str[1] = addr & (1 << 6);
-		addr_str[0] = addr & (1 << 7);
+		addr_str[6] = addr & BIT(1);
+		addr_str[5] = addr & BIT(2);
+		addr_str[4] = addr & BIT(3);
+		addr_str[3] = addr & BIT(4);
+		addr_str[2] = addr & BIT(5);
+		addr_str[1] = addr & BIT(6);
+		addr_str[0] = addr & BIT(7);
 		addr_len = 8;
 	} else {
 		addr_str[5] = addr & 1;
-		addr_str[4] = addr & (1 << 1);
-		addr_str[3] = addr & (1 << 2);
-		addr_str[2] = addr & (1 << 3);
-		addr_str[1] = addr & (1 << 4);
-		addr_str[0] = addr & (1 << 5);
+		addr_str[4] = addr & BIT(1);
+		addr_str[3] = addr & BIT(2);
+		addr_str[2] = addr & BIT(3);
+		addr_str[1] = addr & BIT(4);
+		addr_str[0] = addr & BIT(5);
 		addr_len = 6;
 	}
 	eprom_cs(dev, 1);