Added the EFR32xG23 MCU+SubGHz Radio symbol
Add the EFR32xG23 MCU Datasheet: https://www.silabs.com/documents/public/data-sheets/efr32zg23-datasheet.pdf
Add the EFR32xG23 MCU Datasheet: https://www.silabs.com/documents/public/data-sheets/efr32zg23-datasheet.pdf