Reland: Increase trace duration of runtime HeapprofdCtsTest.

On some devices, this is too short.

Cherry pick of 9dd7002d826247565ac3cc2176a08c2110ec6bf8

Bug: 143513876
Bug: 157867492
Merged-In: I438e734da957b4b7cdac164100f26a5a3355c242
(cherry picked from commit d026bb2713373062f92fecefc45514a9a61aba93)

Change-Id: I38d72edd700dab5ee3b4043b1df5e356b8d8ab3e

test/cts/heapprofd_test_cts.cc

diff --git a/test/cts/heapprofd_test_cts.cc b/test/cts/heapprofd_test_cts.cc
index fb489df..58dc6ab 100644
--- a/test/cts/heapprofd_test_cts.cc
+++ b/test/cts/heapprofd_test_cts.cc
@@ -131,7 +131,7 @@
 
   TraceConfig trace_config;
   trace_config.add_buffers()->set_size_kb(10 * 1024);
-  trace_config.set_duration_ms(2000);
+  trace_config.set_duration_ms(4000);
 
   auto* ds_config = trace_config.add_data_sources()->mutable_config();
   ds_config->set_name("android.heapprofd");