sysutils/liburcu: Update 0.15.6 => 0.15.7
While here:
- Drop backported patches since they are included in the release.
- Add TEST_DEPENDS=bash.
- Sort Makefile (pet portclippy).
Changelog:
https://github.com/urcu/userspace-rcu/blob/v0.15.7/ChangeLog
Commit log:
https://github.com/urcu/userspace-rcu/compare/v0.15.6...v0.15.7
PR: 298447
Approved by: no maintainer
Approved by: osa, vvd (Mentors, implicit)