r264391 breaks buildworld for -CURRENT amd64

[Thomas Hoffmann]

Reference:
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=9766061+0+current/svn-src-head


An attempt to make buildworld on -CURRENT amd64 at r264394 failed with the
following error:

===> lib/liby (depend)
--- sys.depend__D ---
make[6]: make[6]: don't know how to make reloc.c. Stop

make[6]: stopped in /usr/src/sys/boot/amd64/boot1.efi
*** [depend] Error code 2


Reverting to r264390 resolves the issue.

-Tom