Statically link libqtaguid into unit tests.

This is required because libqtaguid is only present on devices
because netd depends on it. Therefore, there is no 32-bit version
of it on 64-bit devices.

Bug: 135699916
Test: atest netd_unit_test
Change-Id: Ia4bc4fb16f21a5f0d1636d540479c5c869544194