Enhance AUX DATA processing

* Adds better clock handling
* Adds TIME_CONV record handling
* Adds ITRACE_STRAT record handling

Followup cls will add support for ARM SPE parsing and that will make use
of these new additions.

Change-Id: I741dcea70d3e731a7c49603b830cdbe9ae47990a
diff --git a/Android.bp b/Android.bp
index 9a581b7..4fea39a 100644
--- a/Android.bp
+++ b/Android.bp
@@ -12636,6 +12636,7 @@
         "src/trace_processor/importers/perf/auxtrace_record.cc",
         "src/trace_processor/importers/perf/etm_tokenizer.cc",
         "src/trace_processor/importers/perf/features.cc",
+        "src/trace_processor/importers/perf/itrace_start_record.cc",
         "src/trace_processor/importers/perf/mmap_record.cc",
         "src/trace_processor/importers/perf/perf_data_tokenizer.cc",
         "src/trace_processor/importers/perf/record_parser.cc",