Document QtBluetooth and QtNfc logging categories

Change-Id: Ib5a9f4e5c0eef85a1acd93454d842bbb0d615751
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>

src/bluetooth/doc/src/bluetooth-index.qdoc

@@ -75,6 +75,32 @@ import statement in your \c .qml file:
     \li \l {Qt Bluetooth C++ Classes}{C++ Classes}
 \endlist
 
+\section2 Logging Categories
+
+The \l QtBluetooth module exports the following
+\l {Configuring Categories}{logging categories}:
+
+\table
+\header
+    \li Logging Category
+    \li Description
+\row
+    \li qt.bluetooth
+    \li Enables logging of cross platform code path in QtBluetooth
+\row
+    \li qt.bluetooth.android
+    \li Enables logging of the Android implementation
+\row
+    \li qt.bluetooth.bluez
+    \li Enables logging of the BLuez/Linux implementation
+\row
+    \li qt.bluetooth.ios
+    \li Enables logging of the iOS implementation
+\row
+    \li qt.bluetooth.osx
+    \li Enables logging of the OS X implementation
+\endtable
+
 \section2 Examples
 \list
     \li QML

src/nfc/doc/src/nfc-index.qdoc

@@ -73,6 +73,20 @@ import statement in your \c .qml file:
     \li \l {Qt NFC C++ Classes}{C++ Classes}
 \endlist
 
+\section2 Logging Categories
+
+The \l QtNfc module exports the following
+\l {Configuring Categories}{logging categories}:
+
+\table
+\header
+    \li Logging Category
+    \li Description
+\row
+    \li qt.nfc.neard
+    \li Enables logging of the Neard/Linux implementation
+\endtable
+
 \section2 Examples
 \list
     \li QML