cmd/link: linking fails with "ld64 doesn't allow BR26 reloc with non-zero addend"

[eliasnaur]

The darwin/arm64 builder has started to fail after 1.8 opened. I believe it started after SSA was merged in

From: https://build.golang.org/log/a096364a3922cb4773c976f74e324727fa3d66f6

# cmd/addr2line
main.main: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+496
main.main: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+448
main.main: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+488
main.main: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+480
runtime.gcMarkTermination: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+492
runtime.scanstack: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+384
runtime.scanstack: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+480
runtime.mProf_Malloc: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+384
runtime.blockevent: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+384
runtime.freedefer: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+488
runtime.gopanic: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+492
runtime.sigprof: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+256
runtime.resetcpuprofiler: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+496
runtime.copystack: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+368
runtime.moduledataverify1: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+384
runtime.tracebackdefers: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+472
runtime.gentraceback: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+472
runtime.gentraceback: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+384
runtime.tracebackCgoContext: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+384
runtime.tracebackCgoContext: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+484
runtime.printCgoTraceback: ld64 doesn't allow BR26 reloc with non-zero addend: runtime.duffzero+484
/private/var/folders/0m/n0150xb53y5cg1rq75_3qv3r0000gn/T/workdir/go/pkg/tool/darwin_amd64/link: too many errors

[gopherbot]

CL https://golang.org/cl/27081 mentions this issue.