libbinder: split out PackageManagerNative aidl

Very few clients of libbinder use PackageManagerNative service, as such
it's a waste to couple them together. Now, user of PackageManagerNative
service need to add the corresponding aidl files as shared library.

Bug: 183654927
Test: builds + presubmit
Ignore-AOSP-First: To avoid merge conflicts, uploading it internally
first. Will be cherry-picked to AOSP later.

Change-Id: Ieca32fc3c970f2b720d76071651e85459d082f02