[AWARE] Change parsing return type to a struct

No functional change: just a semantic change of return type from a Pair
(limited to 2) to a class/struct (unlimited).

Preparation for addition of additional parsed variable.

Bug: 117605977
Test: atest com.android.server.wifi
Change-Id: I7675e20122e66e068ca2948df6fc2a7ec09114ce
2 files changed