Add /apex to the list of allowed SystemServer paths

SystemPartitions does not have the /apex mount. We need to do an
explicit check for it when recording the system server jars.

Test: DexManagerTests, manual
Bug: 148774920
Change-Id: I9c92866304d98144cb82f39b3c768948dcf284ea

services/core/java/com/android/server/pm/dex/DexManager.java

@@ -232,6 +232,10 @@ public class DexManager {
     private boolean isSystemServerDexPathSupportedForOdex(String dexPath) {
         ArrayList<PackagePartitions.SystemPartition> partitions =
                 PackagePartitions.getOrderedPartitions(identity());
+        // First check the apex partition as it's not part of the SystemPartitions.
+        if (dexPath.startsWith("/apex/")) {
+            return true;
+        }
         for (int i = 0; i < partitions.size(); i++) {
             if (partitions.get(i).containsPath(dexPath)) {
                 return true;