rpm: fix %if syntax
rpm: fix %if syntax

rpm in fedora-33 complains about not quoted strings:

    error: bare words are no longer supported, please use "...":  xxen == xxen

marmarek/qubes-core-admin,QubesOS/qubes-core-admin,QubesOS/qubes-core-admin,marmarek/qubes-core-admin,marmarek/qubes-core-admin,QubesOS/qubes-core-admin