Input: elan_i2c - add ELAN0608 to the ACPI table

BugLink: https://bugs.launchpad.net/bugs/1708852

Similar to commit 722c5ac7 ("Input: elan_i2c - add ELAN0605 to the
ACPI table"), ELAN0608 should be handled by elan_i2c.

This touchpad can be found in Lenovo ideapad 320-14IKB.

BugLink: https://bugs.launchpad.net/bugs/1708852Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
(cherry picked from commit 1874064e)
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Po-Hsu Lin (Sam) <po-hsu.lin@canonical.com>
Acked-by: Colin King <colin.king@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

drivers/input/mouse/elan_i2c_core.c

@@ -1235,6 +1235,7 @@ static const struct acpi_device_id elan_acpi_id[] = {
 	{ "ELAN0100", 0 },
 	{ "ELAN0600", 0 },
 	{ "ELAN0605", 0 },
+	{ "ELAN0608", 0 },
 	{ "ELAN1000", 0 },
 	{ }
 };