staging: qlge: Replace the occurrences of (1<<x) by BIT(x)

Adhere to linux coding style. Reported by checkpatch.pl:
CHECK: Prefer using the BIT macro
Signed-off-by: Nandha Kumar Singaram <nandhakumar.singaram@gmail.com>
Link: https://lore.kernel.org/r/20231015133558.GA5489@ubuntuSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/qlge/qlge.h

@@ -1273,7 +1273,7 @@ struct qlge_net_req_iocb {
  */
 struct wqicb {
 	__le16 len;
-#define Q_LEN_V		(1 << 4)
+#define Q_LEN_V		BIT(4)
 #define Q_LEN_CPP_CONT	0x0000
 #define Q_LEN_CPP_16	0x0001
 #define Q_LEN_CPP_32	0x0002
@@ -1308,7 +1308,7 @@ struct cqicb {
 #define FLAGS_LI	0x40
 #define FLAGS_LC	0x80
 	__le16 len;
-#define LEN_V		(1 << 4)
+#define LEN_V		BIT(4)
 #define LEN_CPP_CONT	0x0000
 #define LEN_CPP_32	0x0001
 #define LEN_CPP_64	0x0002