aconfig: update storage unit test case

merge storage_test_1_part_1.aconfig and storage_test_1_part_2.aconfig
into one aconfig file: storage_test_1.aconfig

remove two flags from test_1 package so the total number of flags across
three aconfig package is now 8, which is easier to test in unit test.

Bug: b/312243587
Test: atest aconfig.test
Change-Id: Idd249a8dcddfbae09b211e6310d74697763618f4
diff --git a/tools/aconfig/src/storage/package_table.rs b/tools/aconfig/src/storage/package_table.rs
index 940c5b2..1a3bbc3 100644
--- a/tools/aconfig/src/storage/package_table.rs
+++ b/tools/aconfig/src/storage/package_table.rs
@@ -249,7 +249,7 @@
         let first_node_expected = PackageTableNode {
             package_name: String::from("com.android.aconfig.storage.test_2"),
             package_id: 1,
-            boolean_offset: 10,
+            boolean_offset: 6,
             next_offset: None,
             bucket_index: 0,
         };
@@ -265,7 +265,7 @@
         let third_node_expected = PackageTableNode {
             package_name: String::from("com.android.aconfig.storage.test_4"),
             package_id: 2,
-            boolean_offset: 16,
+            boolean_offset: 12,
             next_offset: None,
             bucket_index: 3,
         };