doc: Add Bluetooth changes to 1.10 release notes

Signed-off-by: Johan Hedberg <[email protected]>

doc/release-notes-1.10.rst

@@ -67,7 +67,13 @@ Networking
 Bluetooth
 *********
 
-* details ...
+* Multiple qualification-related fixes for Bluetooth Mesh
+* Support for Bluetooth Mesh Friend Node role
+* Support for Bluetooth Mesh Foundation Client Models
+* New Bluetooth Mesh shell module and test application
+* Support for PA/LNA amplifiers in the BLE Controller
+* Support for additional VS commands in the BLE Controller
+* Multiple stability fixes for the BLE Controller
 
 Build and Infrastructure
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