perfetto: Add missing changelog entry for ftrace clock snapshotting

Change-Id: I1a48151952e4dcd96c5f1e74c077e5900a31103f
Bug: 216188552
diff --git a/CHANGELOG b/CHANGELOG
index 9b62dc9..26e0f58 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -66,6 +66,9 @@
       the middle of a suspend/resume. Switched from SND_TIMEO to poll(POLLOUT).
     * Added "linux.sysfs_power" data source to poll /sys/class/power_supply/
       and report periodically battery charge and drain rate if supported.
+    * Add snapshotting for non-BOOTTIME ftrace clocks. This fixes handling of
+      ftrace events from old Linux kernel versions (i.e. 3.x) and adds
+      proper support for using the "global" clock rather than "boot".
   Trace Processor:
     * Speeded up proto trace ingestion by 2x (~20 MB/s -> ~40 MB/s).
     * Changed LIKE comparisions to be case-senstive. This may break existing
@@ -76,6 +79,7 @@
     * Changed how displayTimeUnit is handled in JSON traces to match catapult.
     * Added websocket endpoint to RPC interface to reduce query latency.
     * Added support for hot-reloading metrics (see //docs/analysis/metrics.md).
+    * Added ingestion support for non-BOOTTIME ftrace clocks.
   UI:
     * Added ability to save/restore record config. Remember last used config.
     * Fixed bug causing the recording page to hold onto the USB interface making