Avoid OpenCL compilation error when multiple RAND() calls in a formula
Avoid OpenCL compilation error when multiple RAND() calls in a formula

Simply surround the Random123 code snippet with an ifdef guard.

Change-Id: I370a3c37226d31bfbe703e5b7936b2180aee1784

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core