SamsungExynos3RIL: fix sim PIN handling

- fake sim status changed on incorrect PIN (rebase from RIL)
- notify PIN-correct using RADIO_ON instead of on signal strength
  (causes ICC to be queried all the time if no SIM is inserted)

Change-Id: I59bbbce9ac90473aa9efe551198822e253818d85
SmsUsageReceiver : Check if ur is null

Ensure a NPE doesn't occur by checking if the uri is null

Change-Id: Ie172caf616446afc6635839df41efef2f476f673
Merge "SamsungExynos3RIL: fix sim PIN handling" into cm-10.2
Merge remote-tracking branch 'cyanogen/cm-10.2' into cm-10.2