auxdisplay: lcd2s: Use array size explicitly in lcd2s_gotoxy()

Currently the reading of the onstack array is confusing since two
out of three members are of different types. Let it be more clear
by explicitly set the array size, so everybody will understand that
parameters are cast to the type of the array.

While at it, add a missed space.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

drivers/auxdisplay/lcd2s.c

@@ -106,7 +106,7 @@ static int lcd2s_print(struct charlcd *lcd, int c)
 static int lcd2s_gotoxy(struct charlcd *lcd, unsigned int x, unsigned int y)
 {
 	struct lcd2s_data *lcd2s = lcd->drvdata;
-	u8 buf[] = { LCD2S_CMD_CUR_POS, y + 1, x + 1};
+	u8 buf[3] = { LCD2S_CMD_CUR_POS, y + 1, x + 1 };
 
 	lcd2s_i2c_master_send(lcd2s->i2c, buf, sizeof(buf));