update missing files in Manifest

modules/wrc_core/Manifest.py

@@ -4,7 +4,9 @@ files = [ "xwr_core.vhd",
           "wrc_periph.vhd",
           "wrc_syscon_wb.vhd",
           "wrc_syscon_pkg.vhd",
-          "wrc_diags_dpram.vhd",
+          "wrc_diags_wb.vhd",
+          "wrc_diags_pkg.vhd",
+          "xwrc_diags_wb.vhd",
 	      "wrc_urv_wrapper.vhd",
 	      "wrc_cpu_csr_wbgen2_pkg.vhd",
 	      "wrc_cpu_csr_wb.vhd",