Use hdl_lib_include_ip to identify the DDR IP instead of via hdl_lib_excludes.

...d2/designs/unb2_test/revisions/unb2_test_10GbE/hdllib.cfg

...rd2/designs/unb2_test/revisions/unb2_test_1GbE/hdllib.cfg

...ard2/designs/unb2_test/revisions/unb2_test_all/hdllib.cfg

...designs/unb2_test/revisions/unb2_test_ddr_MB_I/hdllib.cfg

...esigns/unb2_test/revisions/unb2_test_ddr_MB_II/hdllib.cfg

...igns/unb2_test/revisions/unb2_test_ddr_MB_I_II/hdllib.cfg

.../designs/unb2a_test/revisions/unb2a_test_10GbE/hdllib.cfg

...a/designs/unb2a_test/revisions/unb2a_test_1GbE/hdllib.cfg

...2a/designs/unb2a_test/revisions/unb2a_test_all/hdllib.cfg

...signs/unb2a_test/revisions/unb2a_test_ddr_MB_I/hdllib.cfg

...igns/unb2a_test/revisions/unb2a_test_ddr_MB_II/hdllib.cfg

...ns/unb2a_test/revisions/unb2a_test_ddr_MB_I_II/hdllib.cfg