security/wolfssh: Update to 1.4.15

• Add USE_LDCONFIG
• Remove "make test"
• Adjust Makefile to more closely follow Porters Handbook
• Fix build that has been broken for weeks

Reported by: pkg-fallout
Approved by: portmgr (blanket, just fix it)

(cherry picked from commit bc512877ccd53a53b4bc4579f20a12f012893276)