vcl: fixed Windows build with enabled breakpad

It was unresolved external symbol CrashReporter::AddKeyValue()
in SalAbort()

Change-Id: I21c48e40a9b9b73e43f6b5f58079b7877a1deac6
Reviewed-on: https://gerrit.libreoffice.org/61293
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

vcl/Library_vclplug_win.mk

@@ -36,6 +36,8 @@ $(eval $(call gb_Library_use_custom_headers,vclplug_win,\
 $(eval $(call gb_Library_use_sdk_api,vclplug_win))
 
 $(eval $(call gb_Library_use_libraries,vclplug_win,\
+    $(call gb_Helper_optional,BREAKPAD, \
+        crashreport) \
     basegfx \
     comphelper \
     cppu \