Add CSD25402Q3A P-channel MOSFET
This one can't be derived from other symbols as there is no Drain-Pin-123-Source-Pin-5 P-channel MOSFET I could find.
This MR is a rebuild of !3275 (closed) but I re-did it due to the other MR having gate = pin 3 which does not match the current version of the package or the datasheet.
Edited by Uli Köhler