devel/apitrace: enable RTLD_DEEPBIND after 620968a43a5f
https://cgit.freebsd.org/src/commit/?id=8a423062d0595
DragonFly still lacks RTLD_DEEPBIND, so use an upstream fix in order
to detect collision and drop on the next update.
New port: devel/apitrace: Tools for tracing OpenGL and other graphics APIs
PR: 223002
Submitted by: Greg V <greg@unrelenting.technology>
Approved by: tcberner (mentor)
Differential Revision: https://reviews.freebsd.org/D13112