Revert "9/N Clean Up Keyguard Class Structure"

Revert submission 12585643-b166448040-keyguard-message-area

Reason for revert: http://b/169081305 & http://b/169020145
Reverted Changes:
I6fa05012c:4/N Setup Controller fo KeyguardSecurityContainer....
Iecf265744:5/N Add KeyguardSecurityViewFlipperController.
I90ab99b2f:6/N Add Controller for KeyguardPatternView
I4b74eddd1:7/N controllers for remaining Keyguard Password Vi...
I805286374:8/N Remove View Injection from KeyguardMessageArea...
I362755980:9/N Clean Up Keyguard Class Structure

Change-Id: Ic62f199a51a15d8384450b8f181f3c5a0b988d7f
Fixes: 169081305
Fixes: 169020145