Update Cache check for core values
Update Cache check for core values

When testing a 2016.1.0.656 version of Cache.  The $SY value returns:
OSEHRA> W $SY
  86060ff57d40:CACHE
This skips the Cache core setting. Which then throws an error when checking
for I `CORES later on.

Change-Id: I042d6114545bdc2d5e7a399d786ce49a397d6c2a

OSEHRA-Sandbox/VistA,josephsnyder/VistA,josephsnyder/VistA,OSEHRA/VistA,OSEHRA/VistA,OSEHRA/VistA,OSEHRA/VistA,josephsnyder/VistA,OSEHRA-Sandbox/VistA,josephsnyder/VistA,OSEHRA-Sandbox/VistA,OSEHRA-Sandbox/VistA,OSEHRA/VistA,josephsnyder/VistA,OSEHRA-Sandbox/VistA,OSEHRA/VistA,OSEHRA-Sandbox/VistA,josephsnyder/VistA