CM: Update contributors

Change-Id: I13c29034f4e2dbe9a7a93ef40396fbced85556be
prepare for switch to new superuser

Change-Id: I69c992928e6552a76ba880a399d08e4f59d348e3
add SUPERUSER_PACKAGE_PREFIX in prep for switch to new superuser

Change-Id: I0b880a6d0f9cf36c0a8419ec00fc978245adbb6f