sysmobts_eeprom.h: Fix/extend model number definitions
sysmobts_eeprom.h: Fix/extend model number definitions

Fix the model number definition for the 1020 and add the one for 1002.

Change-Id: Iba4cfbbda1000d7e34eca614b3a6165d2feb65e1

osmocom/osmo-bts,osmocom/osmo-bts,osmocom/osmo-bts