workaround to make UE decode DLSCH with other SI

nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h

@@ -442,6 +442,9 @@ typedef struct {
   uint16_t start_rb;
   uint16_t number_symbols;
   uint16_t start_symbol;
+  // TODO this is a workaround to make it work
+  // implementation is also a bunch of workarounds
+  uint16_t rb_offset;
   uint16_t dlDmrsSymbPos;  
   uint8_t dmrsConfigType;
   uint8_t prb_bundling_size_ind;