devel/boost-*: update to 1.65.1
Changes: http://www.boost.org/users/history/version_1_65_1.html
PR: 218835
Approved by: maintainer timeout (1.65.1: 2 weeks; 1.65.0: 1 month)
Tested by: jhibbits (on powerpc64, earlier version)
Exp-run by: antoine
Differential Revision: https://reviews.freebsd.org/D11582