Refactoring canSuspendPackage to support batch queries

Taking a list of packages to reduce the number of IPCs the
client has to make.

Test: atest GtsSuspendAppsTestCases:SuspendPackagesTest

Bug: 120908380
Bug: 117968270
Change-Id: Ife7a6acfe2f21e7f4419bcf67630e7b8be50a560