We don't do unit testing when cross-compiling for now
We don't do unit testing when cross-compiling for now

Define the functions that adds the various check targets as empty when
cross-compiling. Avoids the needs for corresponding conditionals in
.mk files in modules.

Change-Id: Ia577e12204b516dc169a8500b4745aac4d7c24e2

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