Enable fail on javadoc in SWT repo

Bundle org.eclipse.swt itself is skipped as jni generation relies on
what "looks like" javadoc tags.

bundles/org.eclipse.swt/pom.xml

@@ -26,6 +26,7 @@
 
     <properties>
         <sonar.sources>Eclipse SWT Accessibility/cocoa,Eclipse SWT Accessibility/common,Eclipse SWT Accessibility/gtk,Eclipse SWT Accessibility/win32,Eclipse SWT AWT/cocoa,Eclipse SWT AWT/common,Eclipse SWT AWT/gtk,Eclipse SWT AWT/win32,Eclipse SWT Browser/cocoa,Eclipse SWT Browser/common,Eclipse SWT Browser/gtk,Eclipse SWT Browser/win32,Eclipse SWT Custom Widgets/common,Eclipse SWT Drag and Drop/cocoa,Eclipse SWT Drag and Drop/common,Eclipse SWT Drag and Drop/gtk,Eclipse SWT Drag and Drop/win32,Eclipse SWT OLE Win32/win32,Eclipse SWT OpenGL/cocoa,Eclipse SWT OpenGL/common,Eclipse SWT OpenGL/glx,Eclipse SWT OpenGL/gtk,Eclipse SWT OpenGL/win32,Eclipse SWT PI/cairo,Eclipse SWT PI/cocoa,Eclipse SWT PI/common,Eclipse SWT PI/gtk,Eclipse SWT PI/win32,Eclipse SWT Printing/cocoa,Eclipse SWT Printing/common,Eclipse SWT Printing/gtk,Eclipse SWT Printing/win32,Eclipse SWT Program/cocoa,Eclipse SWT Program/common,Eclipse SWT Program/gtk,Eclipse SWT Program/win32,Eclipse SWT WebKit/cocoa,Eclipse SWT WebKit/gtk,Eclipse SWT/cairo,Eclipse SWT/cocoa,Eclipse SWT/common,Eclipse SWT/emulated/bidi,Eclipse SWT/emulated/coolbar,Eclipse SWT/emulated/expand,Eclipse SWT/emulated/taskbar,Eclipse SWT/emulated/tooltip,Eclipse SWT/gtk,Eclipse SWT/win32</sonar.sources>
+    	<failOnJavadocErrors>false</failOnJavadocErrors>
     </properties>
 
     <build>

pom.xml

@@ -41,6 +41,7 @@
     <sonar.c.file.suffixes>-</sonar.c.file.suffixes>
     <sonar.cpp.file.suffixes>-</sonar.cpp.file.suffixes>
     <sonar.objc.file.suffixes>-</sonar.objc.file.suffixes>
+    <failOnJavadocErrors>true</failOnJavadocErrors>
   </properties>
 
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