igzip: Add a few missing asm copyright headers

Change-Id: Iddcfbd357efa17dbbd32acacac952579fc052756
Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>

igzip: implement igzip two pass

Change-Id: I9564b2da251a02197b39cab5f141e7aff1ae8439
Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>