Migrate to androidx namespace for support library.

Also, fix the tests so that they point to the correct resources.

Test: build CarSetupWizard and ensured to breakages
Test: build CarSetupSampleOverlay and ensured no breakages
Test: Run setupwizardlib tests.
Bug: 77601495
Change-Id: Ie9a88039f0f049c4f917c1001ba4a669c055690c
Merged-In: Ie9a88039f0f049c4f917c1001ba4a669c055690c
(cherry picked from commit 2b780ca656252e9ebe86226e152a010089bf01e0)
(cherry picked from commit c3eba95fe67c7cb8102ae4cd8bdedd53490c17ae)
(cherry picked from commit b290d35104038908896f92e055938a9d9fef15dc)
5 files changed
tree: 8012606945fd1613cad84bbe711de10ca6563b43
  1. library/
  2. PREUPLOAD.cfg