Input: aiptek - tolerate newlines in sysfs files

Now echo "some value" > /sys/......./somefile is also acceptable.
Signed-off-by: NRene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

drivers/input/tablet/aiptek.c

@@ -375,6 +375,9 @@ static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t
 {
 	const struct aiptek_map *p;
 
+	if (str[count - 1] == '\n')
+		count--;
+
 	for (p = map; p->string; p++)
 	        if (!strncmp(str, p->string, count))
 			return p->value;