Revision 433759

Update to upstream version 3.2.3; promote X265 to default OPTION

Details:
- Update to upstream version 3.2.3, bugfix release, no upstream
  feature changes
- HEVC is becoming so widespread that it warrants promoting the
  X265 option to default [1]

PR:		216471 [1]
Submitted by:	scottro11@gmail.com [1]