gbuild: InstallModule: fix incremental builds:
gbuild: InstallModule: fix incremental builds:

Since the scp2 files heavily depend on the variables in config_host.mk,
let's just rebuild everything when that changes.

Change-Id: Ia07d05d930ece60a8391a93605340ea21af5e6a1

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