Fix Display Settings FC caused by NumberFormatException

Log as follows:

E/AndroidRuntime( 2306): FATAL EXCEPTION: main

E/AndroidRuntime( 2306): Process: com.android.settings, PID: 2306

E/AndroidRuntime( 2306): java.lang.RuntimeException: Unable to start receiver com.android.settings.cyanogenmod.BootReceiver: java.lang.NumberFormatException: Invalid int: "\C0\80\C0\80"

E/AndroidRuntime( 2306): 	at android.app.ActivityThread.handleReceiver(ActivityThread.java:2586)

E/AndroidRuntime( 2306): 	at android.app.ActivityThread.access$1700(ActivityThread.java:144)

E/AndroidRuntime( 2306): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355)

E/AndroidRuntime( 2306): 	at android.os.Handler.dispatchMessage(Handler.java:102)

E/AndroidRuntime( 2306): 	at android.os.Looper.loop(Looper.java:135)

E/AndroidRuntime( 2306): 	at android.app.ActivityThread.main(ActivityThread.java:5223)

E/AndroidRuntime( 2306): 	at java.lang.reflect.Method.invoke(Native Method)

E/AndroidRuntime( 2306): 	at java.lang.reflect.Method.invoke(Method.java:372)

E/AndroidRuntime( 2306): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)

E/AndroidRuntime( 2306): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)

E/AndroidRuntime( 2306): Caused by: java.lang.NumberFormatException: Invalid int: "\C0\80\C0\80"

E/AndroidRuntime( 2306): 	at java.lang.Integer.invalidInt(Integer.java:138)

E/AndroidRuntime( 2306): 	at java.lang.Integer.parse(Integer.java:410)

E/AndroidRuntime( 2306): 	at java.lang.Integer.parseInt(Integer.java:367)

E/AndroidRuntime( 2306): 	at java.lang.Integer.parseInt(Integer.java:334)

E/AndroidRuntime( 2306): 	at org.cyanogenmod.hardware.AdaptiveBacklight.isEnabled(AdaptiveBacklight.java:50)

E/AndroidRuntime( 2306): 	at com.android.settings.DisplaySettings.restore(DisplaySettings.java:662)

E/AndroidRuntime( 2306): 	at com.android.settings.cyanogenmod.BootReceiver.onReceive(BootReceiver.java:46)

E/AndroidRuntime( 2306): 	at android.app.ActivityThread.handleReceiver(ActivityThread.java:2579)

E/AndroidRuntime( 2306): 	... 9 more