Fsync data after writing prefs

update_engine is relying on prefs stored on filesystem to resume OTA
progress. Partners report loss of update progress after forced reboot.
This might be I/O cache issue.

Test: th
Bug: 259174530
Change-Id: I7b4b8281cfe2cc45c51e4d6d60e09edb12f3ed86
diff --git a/aosp/cleanup_previous_update_action.cc b/aosp/cleanup_previous_update_action.cc
index fb7bac1..7b0c9bb 100644
--- a/aosp/cleanup_previous_update_action.cc
+++ b/aosp/cleanup_previous_update_action.cc
@@ -379,10 +379,7 @@
 }
 
 bool CleanupPreviousUpdateAction::BeforeCancel() {
-  if (DeltaPerformer::ResetUpdateProgress(
-          prefs_,
-          false /* quick */,
-          false /* skip dynamic partitions metadata*/)) {
+  if (DeltaPerformer::ResetUpdateProgress(prefs_, false /* quick */)) {
     return true;
   }