neko/Cat: Mark FLAG_IMMUTABLE PendingIntent with FLAG_MUTABLE

* Fixes device control crash when interacting with cat control

stacktrace: java.lang.RuntimeException: java.lang.IllegalArgumentException: 0|com.android.egg|1|com.android.egg.neko:allcats|10100 Not posted. PendingIntents attached to bubbles must be mutable
	at android.app.job.JobServiceEngine$JobHandler.handleMessage(JobServiceEngine.java:109)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loopOnce(Looper.java:201)
	at android.os.Looper.loop(Looper.java:288)
	at android.app.ActivityThread.main(ActivityThread.java:7837)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)

Change-Id: I1e755ce8a38cfefb1474bbfefd307767a436e9d0
Signed-off-by: PainKiller3 <ninadpatil100@gmail.com>