With PCH, the earlier workaround with NSS_PKCS11_2_0_COMPAT breaks -
so lets fix this with conditionals, its only two places.
Follow-up commit to 9276d5338e
Change-Id: I7d3292304d83d784ee9dce5cdc62b4a028ff333a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/161204
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <thorsten.behrens@allotropia.de>