hid: sony: Remove a redundant error check

Remove a leftover if (ret < 0) goto err_stop that wasn't removed
from a previous change as it no longer does anything.

Signed-off-by: Frank Praznik<frank.praznik@oh.rr.com>
hid: sony: Update the DualShock 4 touchpad resolution

The DualShock 4 touchpad has been measured to have a resolution of
44.86 dots/mm which equates to 1920x942.

Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>