Bug 1069082 - [woodduck][SIM Security]User can't turn off SIM PIN settin...

...g
Note that we have a lot of locking types[1]. That would be easier allowing the users to enter the sim pin panel only when the card state equals `ready`.

[1]: http://lxr.mozilla.org/mozilla-central/source/dom/system/gonk/ril_consts.js#2490