Collect permitted packages from java_sdk_library instances

Switching an updatable boot jar from java_library to java_sdk_library
changed the contents of the updatable-bcp-packages.txt due to the code
requiring the module to be *Library. This change updates that to allow
it to be any module that implements the
PermittedPackagesForUpdatableBootJars interface which is *Library and
anything that embeds that like *SdkLibrary.

Bug: 155164730
Test: m droid and check the contents of system/etc/updatable-bcp-packages.txt
Change-Id: I464af74628da311734f102f77ec8158daec5b32d