staging: iio: addac: adt7316.h Fix Unnecessary space after function pointer name

The patch fixes the following checkpatch.pl warnings:
WARNING: Unnecessary space after function pointer name.
Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/iio/addac/adt7316.h

@@ -18,10 +18,10 @@ struct adt7316_bus {
 	void *client;
 	int irq;
 	int irq_flags;
-	int (*read) (void *client, u8 reg, u8 *data);
-	int (*write) (void *client, u8 reg, u8 val);
-	int (*multi_read) (void *client, u8 first_reg, u8 count, u8 *data);
-	int (*multi_write) (void *client, u8 first_reg, u8 count, u8 *data);
+	int (*read)(void *client, u8 reg, u8 *data);
+	int (*write)(void *client, u8 reg, u8 val);
+	int (*multi_read)(void *client, u8 first_reg, u8 count, u8 *data);
+	int (*multi_write)(void *client, u8 first_reg, u8 count, u8 *data);
 };
 
 #ifdef CONFIG_PM_SLEEP