message: Fix return from homomorphic host redirection trampoline.
diff: @@ -1033,7 +1033,10 @@ impl Emitter for Assembler {
  ; ldr X(map_gpr(GPR::RBP).x()), [sp, 56]
  ; ldr X(map_gpr(GPR::RSP).x()), [sp, 64]
  ; add sp, sp, 80
  - ; br x30
  +
  + ; ldr x_tmp1, [x_rsp]
  + ; add x_rsp, x_rsp, 8
  + ; br x_tmp1
  );
  }
  }
  