Add PetitbootMMU to Skiroot, Mambo and Qemu suites
Add PetitbootMMU to Skiroot, Mambo and Qemu suites

Signed-off-by: Joel Stanley <4816dabf8db1bc6cac35b3a24cab2ff844b5b0c7@jms.id.au>

open-power/op-test-framework,open-power/op-test-framework,open-power/op-test-framework