Move test_func_sdp_transpose_packet.py to existing src/python.

applications/lofar2/libraries/sdp/tb/vhdl/tb_sdp_pkg.vhd

@@ -496,7 +496,7 @@ package body tb_sdp_pkg is
   end;
 
   -- BDO transpose:
-  -- . See sdp/python/test_func_sdp_bdo_transpose_packet.py to verify that
+  -- . See sdp/src/python/test_func_sdp_bdo_transpose_packet.py to verify that
   --   v_out = func_sdp_bdo_transpose_packet(4, 488, v_in) yields the expected v_out.
   -- . See data repacking section in:
   --   https://support.astron.nl/confluence/pages/viewpage.action?spaceKey=L2M&title=L4+SDPFW+Decision%3A+Multiple+beamlet+output+destinations