I have never heard of codependent patches. That's crazy. Let me see here...
PHKL_33049 requires: PHKL_31500 PHKL_33463
PHKL_33463 requires: PHKL_31500 PHKL_33049
The procedure to consolidate patches is in
this thread. If that doesn't work for you, try adding this option to swinstall:
-x enforce_dependencies=false
Good Luck. Let us know how it goes.