doc: release: 2.7: add release notes for IPM

dcpleung · cfriedt · commit a7baa3628d99 · 2021-10-01T20:35:45.000-04:00
Add release notes for IPM drivers based on commit history.

Signed-off-by: Daniel Leung &lt;daniel.leung@intel.com&gt;
diff --git a/doc/releases/release-notes-2.7.rst b/doc/releases/release-notes-2.7.rst
@@ -342,6 +342,9 @@ Drivers and Sensors
 
 * IEEE 802.15.4
 
+* IPM
+
+  * Added STM32 HSEM IPM driver.
 
 * Interrupt Controller
 
