media: tda7432: fix spelling mistake "maximium" -> "maximum"

There is a spelling mistake in the module description as well
as a comment. Fix them.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/i2c/tda7432.c

@@ -19,7 +19,7 @@
  *
  * loudness - set between 0 and 15 for varying degrees of loudness effect
  *
- * maxvol   - set maximium volume to +20db (1), default is 0db(0)
+ * maxvol   - set maximum volume to +20db (1), default is 0db(0)
  */
 
 #include <linux/module.h>
@@ -53,7 +53,7 @@ MODULE_PARM_DESC(debug, "Set debugging level from 0 to 3. Default is off(0).");
 module_param(loudness, int, S_IRUGO);
 MODULE_PARM_DESC(loudness, "Turn loudness on(1) else off(0). Default is off(0).");
 module_param(maxvol, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(maxvol, "Set maximium volume to +20dB(0) else +0dB(1). Default is +20dB(0).");
+MODULE_PARM_DESC(maxvol, "Set maximum volume to +20dB(0) else +0dB(1). Default is +20dB(0).");
 
 
 /* Structure of address and subaddresses for the tda7432 */