Revert "SystemUI: don't show eq tile while casting"

Does not work as intended.

This reverts commit 72dc45fb1b219aafa1d4b2fe62d144739ae4a552.

Change-Id: Ifd40c70c45b038983145369287a6dae177ac0a4c
Keyguard: Can't enter PIN code when setting the SIM and PIN lock issue

By original design, after unlock SIM PIN, SIM card's state is READY and it
will invoke resetStateLocked() to inflate KeyguardHostView. So there is
only one view be created in mSecurityViewContainer.

Roll back previous solution.
Don't set mSimState before handleSimStateChange() and don't judge
isSecure() to be consistent with the original design.

CRs-Fixed: 661955

Change-Id: Ide872c50e6823bed92720c0c40aa7987207980ed