fix RepositoryExternal.mk for system-firebird
fix RepositoryExternal.mk for system-firebird

Change-Id: Ie8308940bbeb607babaead768407ff6eefcda098

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