pia335x: add configuration for first start configuration

- allows programming of EEPROM
- should be exanded to include some essential HW tests

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
pia335x: reduce debug output

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>