Extend wsialloc_alloc with disjoint information
Extends wsialloc_alloc to return whether or not the allocation will be disjoint.
Groups wsialloc_alloc's return values to a struct.
Change-Id: I7542e37d8af16ce7989ab235c02305d562f3c667 Signed-off-by: Iason Paraskevopoulos iason.paraskevopoulos@arm.com