incremental: Move AIDL file to declared package.

There was a regression in the AIDL compiler recently that removed the
requirement that, like in Java, .aidl unstructured parcelables (these
parcelable declarations) are in directories and files which match their
packages and file names. This CL moves relevant files to the correct
directory required by their type.

Bug: N/A
Test: build
Change-Id: I5fd112f1bcd0d1fc3be3c8dc7f1959242d43858e

core/java/android/content/pm/IncrementalStatesInfo.aidl

@@ -15,6 +15,6 @@
 ** limitations under the License.
 */
 
-package com.android.server.pm;
+package android.content.pm;
 
-parcelable IncrementalStatesInfo;
+parcelable IncrementalStatesInfo;