Libstatspull: decrease default pull timeout to 2s

Decrease the default pull timeout to 2 seconds.

Test: atest LibStatsPullTests
Test: atest libstatspull_test
Bug: 154056912
Change-Id: I8f7660de64e8c74a8c7ce7d252369c0456895e3b
diff --git a/libstats/pull/stats_pull_atom_callback.cpp b/libstats/pull/stats_pull_atom_callback.cpp
index 2d184bd..0b9dd52 100644
--- a/libstats/pull/stats_pull_atom_callback.cpp
+++ b/libstats/pull/stats_pull_atom_callback.cpp
@@ -47,7 +47,7 @@
 }
 
 static const int64_t DEFAULT_COOL_DOWN_MILLIS = 1000LL;  // 1 second.
-static const int64_t DEFAULT_TIMEOUT_MILLIS = 10000LL;   // 10 seconds.
+static const int64_t DEFAULT_TIMEOUT_MILLIS = 2000LL;    // 2 seconds.
 
 struct AStatsManager_PullAtomMetadata {
     int64_t cool_down_millis;