Defining a list-typed thing in ZAP XML is inconsistent

[bzbarsky-apple]

For attributes you have to do:

type="array" entryType="int8u"

to represent the list[uint8] type from the spec.

For event fields, struct fields, command fields, you have to do:

array="true" type="int8u"

to represent the list[uint8] type from the spec.