How to fix build error at rtl88x2bs?

Hi All,

I'm trying to build rtl88x2bs on my arm64 platform.
And follow the changes of here and got follow error.
Does anyone can help me out? Thanks.

./include/net/iw_handler.h: In function 'iwe_stream_lcp_len':
./include/net/iw_handler.h:477:10: error: 'IW_EV_COMPAT_LCP_LEN' undeclared (first use in this function); did you mean 'IW_EV_LCP_LEN'?
   return IW_EV_COMPAT_LCP_LEN;
          ^~~~~~~~~~~~~~~~~~~~
          IW_EV_LCP_LEN
./include/net/iw_handler.h:477:10: note: each undeclared identifier is reported only once for each function it appears in
./include/net/iw_handler.h: In function 'iwe_stream_point_len':
./include/net/iw_handler.h:486:10: error: 'IW_EV_COMPAT_POINT_LEN' undeclared (first use in this function); did you mean 'IW_EV_POINT_LEN'?
   return IW_EV_COMPAT_POINT_LEN;
          ^~~~~~~~~~~~~~~~~~~~~~
          IW_EV_POINT_LEN
./include/net/iw_handler.h: In function 'iwe_stream_event_len_adjust':
./include/net/iw_handler.h:497:16: error: 'IW_EV_COMPAT_LCP_LEN' undeclared (first use in this function); did you mean 'IW_EV_LCP_LEN'?
   event_len += IW_EV_COMPAT_LCP_LEN;
                ^~~~~~~~~~~~~~~~~~~~
                IW_EV_LCP_LEN