tty: nozomi: fix spelling mistake "reserverd" -> "reserved"

The reserved bits should be named reserved.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200214141455.20902-1-alexandre.belloni@bootlin.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/nozomi.c

@@ -301,7 +301,7 @@ struct ctrl_dl {
 	unsigned int DCD:1;
 	unsigned int RI:1;
 	unsigned int CTS:1;
-	unsigned int reserverd:4;
+	unsigned int reserved:4;
 	u8 port;
 } __attribute__ ((packed));