Lower protection level of WiFi state change permissions.

bug:21724236

Change-Id: Ib2305bf8a6be62fe6b00d9bccc7685100edba9ba
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 065b792..59383ab 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -922,7 +922,7 @@
     <permission android:name="android.permission.CHANGE_WIFI_STATE"
         android:description="@string/permdesc_changeWifiState"
         android:label="@string/permlab_changeWifiState"
-        android:protectionLevel="dangerous" />
+        android:protectionLevel="normal" />
 
     <!-- @SystemApi @hide Allows applications to read Wi-Fi credential.
          <p>Not for use by third-party applications. -->
@@ -952,7 +952,7 @@
     <permission android:name="android.permission.CHANGE_WIMAX_STATE"
         android:description="@string/permdesc_changeWimaxState"
         android:label="@string/permlab_changeWimaxState"
-        android:protectionLevel="dangerous" />
+        android:protectionLevel="normal" />
 
     <!--@SystemApi Allows applications to the the local WiFi and Bluetooth MAC address.
         @hide
@@ -1057,7 +1057,7 @@
     <permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"
         android:description="@string/permdesc_changeWifiMulticastState"
         android:label="@string/permlab_changeWifiMulticastState"
-        android:protectionLevel="dangerous" />
+        android:protectionLevel="normal" />
 
     <!-- Allows access to the vibrator -->
     <permission android:name="android.permission.VIBRATE"