Rename c_sdp_W_fsub_wg into c_sdp_W_local_oscillator. Use...
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Rename c_sdp_W_fsub_wg into c_sdp_W_local_oscillator. Use func_wpfb_map_real_input_wpfb_parameters_to_complex_input() to derive c_sdp_wpfb_complex_subbands from c_sdp_wpfb_subbands.
Closes L2SDP-857