Revise PackageVisibilityTest

Reboot the device after uninstallation with keep data in order to
ensure the behavior is expected across boot.

Bug: 193864540
Bug: 187650819
Test: atest AppEnumerationTests PackageVisibilityTest
Change-Id: Id51dfe867c08339c1ef0ea38891b9f8de9d932ff
Merged-In: Id51dfe867c08339c1ef0ea38891b9f8de9d932ff
(cherry picked from commit 6c5bc1f846a4c36809e580ec49f510328d0f7c7c)
1 file changed