The "all" tag is added for paring. This tag is similar to a "sequence"
tag, but this tag does not require ordering.
Add the suffix to name as "_all" to distinguish it from the sequence
and choice tag.

Bug: 128445816
Test: m -j && atest xsdc-cpp-tests
Change-Id: I4fe0278501195ec2dc1c3aa79a0e18fe9efd1864