gpg4libre: make gpgme-w32spawn available also for unit test

Change-Id: I57beb4fc5c77369d5dbf61d5d8d562a62e109f77
Reviewed-on: https://gerrit.libreoffice.org/46051Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

external/gpgmepp/ExternalPackage_gpgmepp.mk

@@ -26,6 +26,7 @@ $(eval $(call gb_ExternalPackage_add_file,gpgmepp,$(LIBO_LIB_FOLDER)/libgpgme.11
 else ifeq ($(OS),WNT)
 
 $(eval $(call gb_ExternalPackage_add_file,gpgmepp,$(LIBO_LIB_FOLDER)/gpgme-w32spawn.exe,src/gpgme-w32spawn.exe))
+$(eval $(call gb_ExternalPackage_add_file,gpgmepp,$(gb_Executable_BINDIR_FOR_BUILD)/gpgme-w32spawn.exe,src/gpgme-w32spawn.exe))
 
 endif