[gn] port 5d146c6

Author: nico

llvm/utils/gn/secondary/compiler-rt/include/BUILD.gn

@@ -18,6 +18,7 @@ copy("include") {
     "sanitizer/memprof_interface.h",
     "sanitizer/msan_interface.h",
     "sanitizer/netbsd_syscall_hooks.h",
+    "sanitizer/rtsan_interface.h",
     "sanitizer/scudo_interface.h",
     "sanitizer/tsan_interface.h",
     "sanitizer/tsan_interface_atomic.h",