symbolizer: use fixed prebuilt binary in test

With commit 94c95d3e52ed55ef57e60ace559b684e4d5ebcbf
go command strips symbols from empheral test binaries.
Thus the test started failing.
Use a simple fixed binary in the test.

1 files changed, 0 insertions, 0 deletions

diff --git a/symbolizer/testdata/nm.test.out b/symbolizer/testdata/nm.test.out
new file mode 100755
index 000000000..c6ee07240
--- /dev/null
+++ b/symbolizer/testdata/nm.test.out