Partitions: Remove NS interface libraries

Removes the NS interface libraries from the extra partitions, as with
the split build they are only built as part of the Secure build and so
cannot be used by NS. Changes the extra partitions' NS tests to directly
build the required interface files.

Signed-off-by: Jamie Fox <jamie.fox@arm.com>
Change-Id: I141717fe9bda3454a73163075e5d53a35021c6a1
5 files changed