fix dts - symbol error

ronnie

2022-10-23 4bf14332546635f50a1bf7f3df4c0a8e29643280

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{
global:
  EnsureFrontOfChain;
  AddSpecialSignalHandlerFn;
  RemoveSpecialSignalHandlerFn;
  bsd_signal;
  sigaction;
  sigaction64;
  signal;
  sigprocmask;
  sigprocmask64;
local:
  *;
};