Add SMB3.02 dialect support

The new Windows update supports SMB3.02 dialect, a minor update to SMB3.
This patch adds support for mounting with vers=3.02

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index a20a8a7..cb155bf 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -386,6 +386,8 @@
 		cifs_dbg(FYI, "negotiated smb2.1 dialect\n");
 	else if (rsp->DialectRevision == cpu_to_le16(SMB30_PROT_ID))
 		cifs_dbg(FYI, "negotiated smb3.0 dialect\n");
+	else if (rsp->DialectRevision == cpu_to_le16(SMB302_PROT_ID))
+		cifs_dbg(FYI, "negotiated smb3.02 dialect\n");
 	else {
 		cifs_dbg(VFS, "Illegal dialect returned by server %d\n",
 			 le16_to_cpu(rsp->DialectRevision));