Fixed Doxygen comments after scanning complete src directory

src/frontends/android/jni/libandroidbridge/backend/android_creds.h

@@ -49,7 +49,7 @@ struct android_creds_t {
 	/**
 	 * Load the user certificate and private key
 	 *
-	 * @preturn					loaded client certificate, NULL on failure
+	 * @return					loaded client certificate, NULL on failure
 	 */
 	certificate_t *(*load_user_certificate)(android_creds_t *this);
 

src/frontends/android/jni/libandroidbridge/kernel/android_ipsec.h

@@ -16,7 +16,7 @@
 
 /**
  * @defgroup kernel_android_ipsec kernel_android_ipsec
- * @{ @ingroup kernel_android
+ * @{ @ingroup android_kernel
  */
 
 #ifndef KERNEL_ANDROID_IPSEC_H_

src/frontends/android/jni/libandroidbridge/kernel/android_net.h

@@ -15,7 +15,7 @@
 
 /**
  * @defgroup kernel_android_net kernel_android_net
- * @{ @ingroup kernel_android
+ * @{ @ingroup android_kernel
  */
 
 #ifndef KERNEL_ANDROID_NET_H_

src/frontends/android/jni/libandroidbridge/kernel/network_manager.h

@@ -15,7 +15,7 @@
 
 /**
  * @defgroup network_manager network_manager
- * @{ @ingroup kernel_android
+ * @{ @ingroup android_kernel
  */
 
 #ifndef NETWORK_MANAGER_H_