release: add draft notes for upcoming 3.7.0

Add new SC16IS75x Breakout Boards as Shields:

- BOB-09981: I2C/SPI-to-UART Breakout - SC16IS750 shield by SparkFun
- CJMCU-750: I2C/SPI-to-UART Breakout - SC16IS750 shield by CJMCU
- GT-SC16IS750: I2C/SPI-to-UART Breakout - SC16IS750 shield by Q-Baihe
- CJMCU-752: I2C/SPI-to-UART Breakout - SC16IS752 shield by CJMCU

Signed-off-by: Stephan Linz <linz@li-pro.net>

doc/bridle/releases/release-notes-3.7.0.rst

@@ -130,6 +130,7 @@ Supported shields
 * Waveshare LCD Modules
 * Waveshare Pico 10-DOF IMU Sensor
 * Waveshare Pico Environment Sensor
+* SC16IS75x Breakout Boards
 
 Supported snippets
 ******************
@@ -175,6 +176,16 @@ Change log
     * *EP-0164* **Pico Breadboard Kit** shield by 52Pi (GeeekPi)
     * *EP-0172* **Pico Breadboard Kit Plus** shield by 52Pi (GeeekPi)
 
+  * *SC16IS75x Breakout Boards as Shields*:
+
+    * *BOB-09981* **I2C/SPI-to-UART Breakout - SC16IS750** shield by SparkFun
+    * *CJMCU-750* **I2C/SPI-to-UART Breakout - SC16IS750** shield by CJMCU
+      (Changjiang Intelligent Technology Co., Ltd.)
+    * *GT-SC16IS750* **I2C/SPI-to-UART Breakout - SC16IS750** shield by Q-Baihe
+      (Wuhan Lilly Electronics Co., Ltd.)
+    * *CJMCU-752* **I2C/SPI-to-UART Breakout - SC16IS752** shield by CJMCU
+      (Changjiang Intelligent Technology Co., Ltd.)
+
 The following sections provide detailed lists of changes by component.
 
 * PROJECT UPDATE to `Zephyr Project`_ v3.7
@@ -238,6 +249,7 @@ Issue Related Items
 
 These GitHub issues were addressed since project bootstrapping:
 
+* :github:`257` - [HW] SC16IS75x Breakout Boards as Shields
 * :github:`254` - [FCR] Bump to Zephyr v3.7
 * :github:`252` - [FCR] Upgrade to Zephyr SDK 0.16.8
 * :github:`247` - [HW] NXP SC18IS604 SPI to I2C bridge