Added SO-8 for the PCF8523 RTC Chip
Created by: johnfwhitmore
https://www.nxp.com/docs/en/data-sheet/PCF8523.pdf
Signed-off-by: John Whitmore johnfwhitmore@gmail.com
This footprint is marked in the PCF8523 Datasheet as an SO-8 but it appears to be different to the SO-8 already in the footprint lib.
Edited by Joel Guittet