doc: release-notes-3.7: Add reset drivers notes

Add release notes for the reset controller driver class.

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>

Author: Declan Snyder

doc/releases/release-notes-3.7.rst

@@ -468,6 +468,12 @@ Drivers and Sensors
 
 * Regulators
 
+* Reset
+
+  * Added driver for reset controller on Nuvoton NPCX chips.
+  * Added reset controller driver for NXP SYSCON.
+  * Added reset controller driver for NXP RSTCTL.
+
 * Retained memory
 
 * RTC