HID: intel-ish-hid: fixes incorrect error handling

The memory chunk allocated by hid_allocate_device() should be released
by hid_destroy_device(), not kfree().

Fixes: 0b28cb4b("HID: intel-ish-hid: ISH HID client driver")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>