[MANAGER] Change PANEL_ID and TOUCH_ID interface to use numbers as input params

The data was passed and stored as ascii before this '1'. We decided to switch to hexadecimal/number interpretation of the data, so now it should be '-a 0x05,0x01' to select the panel-id-1. As also decimal numbers are interpreted correctly, the previous synthax: '-a 0x05,1' still works, and also means panel-id-1. Only the data resulting in the eeprom changes from ascii '1' (0x31) to 0x01. Together with this change, the u-boot part, interpreting this value needs to be changed.