elfutils: Upgrade to 0.166

Has many fixes for compiling it with gcc-6

(From OE-Core rev: 071b6a0c3cdeb3635a8ccfbc708573723308dd68)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/elfutils/elfutils-0.166/kfreebsd_path.patch

@@ -0,0 +1,15 @@
+--- elfutils/tests/run-native-test.sh.orig
++++ elfutils/tests/run-native-test.sh
+@@ -78,6 +78,12 @@
+   test $native -eq 0 || testrun "$@" -p $native > /dev/null
+ }
+ 
++# On the Debian buildds, GNU/kFreeBSD linprocfs /proc/$PID/maps does
++# not give absolute paths due to sbuild's bind mounts (bug #570805)
++# therefore the next two test programs are expected to fail with
++# "cannot attach to process: Function not implemented".
++[ "$(uname)" = "GNU/kFreeBSD" ] && exit 77
++
+ native_test ${abs_builddir}/allregs
+ native_test ${abs_builddir}/funcretval
+