doc: release: 3.7: Add hyperlinks for boards

Add hyperlinks to each board's page for added in this release.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>

doc/releases/release-notes-3.7.rst

@@ -213,11 +213,12 @@ Boards & SoC Support
 
 * Added support for these ARM boards:
 
-  * Added support for Ambiq Apollo3 boards: ``apollo3_evb``, ``apollo3p_evb``.
-  * Added support for RaspberryPi5 board: ``rpi_5``.
-  * Added support for Seeed Studio XIAO RP2040 board: ``xiao_rp2040``.
-  * Added support for Mikroe RA4M1 Clicker board: ``mikroe_clicker_ra4m1``.
-  * Added support for Arduino UNO R4 WiFi board: ``arduino_uno_r4_wifi``.
+  * Added support for :ref:`Ambiq Apollo3 Blue board <apollo3_evb>`: ``apollo3_evb``.
+  * Added support for :ref:`Ambiq Apollo3 Blue Plus board <apollo3p_evb>`: ``apollo3p_evb``.
+  * Added support for :ref:`Raspberry Pi 5 board <rpi_5>`: ``rpi_5``.
+  * Added support for :ref:`Seeed Studio XIAO RP2040 board <xiao_rp2040>`: ``xiao_rp2040``.
+  * Added support for :ref:`Mikroe RA4M1 Clicker board <mikroe_clicker_ra4m1>`: ``mikroe_clicker_ra4m1``.
+  * Added support for :ref:`Arduino UNO R4 WiFi board <arduino_uno_r4>`: : ``arduino_uno_r4_wifi``.
 
 * Added support for these Xtensa boards: