Blacklist CFI unrelated cast issue in protoc generated code

protoc 3.5.2 generates code that contains an unrelated cast that
causes a CFI error.  Blacklist it for now.

Test: boot with protoc 3.5.2, set screen lock pattern
Bug: 119127110
Change-Id: Ib891628955754f170ce0bb5cf63716961a57b21b
1 file changed