multimedia/handbrake: update to 1.3.2

Changes: https://github.com/HandBrake/HandBrake/releases/tag/1.3.2
Submitted by: Yuichiro NAITO (maintainer)
Tested by: pkubaj (powerpc64)
MFH: 2020Q2 (mostly bug fixes)
Differential Revision: https://reviews.freebsd.org/D24742