doc: release-notes: add notes for few session with no maintainers

Add few release notes from changes in sections that do not list an
explicit maintainer, taken from:

git log v3.1.0..main drivers/interrupt_controller
git log v3.1.0..main drivers/memc
git log v3.1.0..main drivers/power_domain

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
diff --git a/doc/releases/release-notes-3.2.rst b/doc/releases/release-notes-3.2.rst
index 1065ae6..ded2f56 100644
--- a/doc/releases/release-notes-3.2.rst
+++ b/doc/releases/release-notes-3.2.rst
@@ -421,6 +421,10 @@
 
 * Interrupt Controller
 
+  * Added support for ACE V1X.
+  * Fixed an addressing issue on GICv3 controllers.
+  * Removed support for ``intel_s1000_crb``.
+
 * IPM
 
   * Kconfig is split into smaller, vendor oriented files.
@@ -438,6 +442,8 @@
 
 * MEMC
 
+  * Added support for Atmel SAM SMC/EBI.
+
 * MM
 
 * Modem
@@ -475,6 +481,7 @@
 
   * Enabled access to the PMIC on NXP MXRT595 EVK.
   * Added soft off mode to the RT10xx Power Management.
+  * Added support for power gating for Intel ADSP devices.
 
 * Reset