input: migor_ts compile and detection fix

The i2c layer got changed while the migor_ts driver was in the input
tree waiting to get merged upstream. Fix current compile issue by using
struct i2c_client member "name" instead of "driver_name". Also, add
id_table to make sure the device gets properly detected.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>