[rtems-release commit] Update rtems-notes-5.md

[Jan Sommer]

Module:    rtems-release
Branch:    master
Commit:    585f5db93781f75e4d546af869ebd77f28cabe5c
Changeset: http://git.rtems.org/rtems-release/commit/?id=585f5db93781f75e4d546af869ebd77f28cabe5c

Author:    Moyano, Gabriel <gabriel.moyano at dlr.de>
Date:      Tue Nov 30 15:55:35 2021 +0100

Update rtems-notes-5.md

---

 rtems-notes-5.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/rtems-notes-5.md b/rtems-notes-5.md
index 3737199..96dc151 100644
--- a/rtems-notes-5.md
+++ b/rtems-notes-5.md
@@ -1,3 +1,12 @@
+## RTEMS 5.2 Release Notes
+
+### API Changes
+
+#### API Additions
+
+* NTP support
+	* Addition of NTP update second handler via _Timecounter_Set_NTP_update_second() from <rtems/score/timecounter.h>
+
 ## RTEMS 5.1 Release Notes
 
 ### RTEMS Improvements