doc: release-notes-4.0: Add a few Nordic related entries and an ADC one

Add notes for Nordic HAL and other nRF related stuff plus one more ADC
entry.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>

doc/releases/release-notes-4.0.rst

@@ -184,6 +184,7 @@ Boards & SoC Support
   * Silabs Series 2: Use oscillator, clock and DCDC configuration from device tree during init.
   * Silabs Series 2: Added initialization for SMU (Security Management Unit).
   * Silabs Series 2: Use sleeptimer as the default OS timer instead of systick.
+  * Nordic nRF54H: Added support for the FLPR (Fast Lightweight Processor) RISC-V CPU.
 
 * Added support for these boards:
 
@@ -338,6 +339,7 @@ Drivers and Sensors
   * STM32H7: Added support for higher sampling frequencies thanks to boost mode implementation.
   * Added initial support for Renesas RA8 ADC driver (:dtcompatible:`renesas,ra-adc`)
   * Added driver for Analog Devices MAX32 SoC series (:dtcompatible:`adi,max32-adc`).
+  * Added support for Ambiq Apollo3 series (:dtcompatible:`ambiq,adc`).
 
 * Battery
 
@@ -362,6 +364,7 @@ Drivers and Sensors
     :dtcompatible:`renesas,ra-cgc-external-clock`, :dtcompatible:`renesas,ra-cgc-subclk`,
     :dtcompatible:`renesas,ra-cgc-pll-out`)
   * Silabs: Added support for Series 2+ Clock Management Unit (see :dtcompatible:`silabs,series-clock`)
+  * Added initial support for Nordic nRF54H Series clock controllers.
 
 * Comparator
 
@@ -793,6 +796,7 @@ Drivers and Sensors
   * Add ESP32-C2 Wi-Fi support.
   * Add ESP32 driver APSTA support.
   * Add NXP RW612 driver support.
+  * Added nRF70 Wi-Fi driver.
 
 Networking
 **********
@@ -1252,6 +1256,9 @@ HALs
 
 * Nordic
 
+  * Updated nrfx to version 3.7.0.
+  * Added OS agnostic parts of the nRF70 Wi-Fi driver.
+
 * STM32
 
   * Updated STM32C0 to cube version V1.2.0.