ARXML: fix a few coding style mishaps in the new reference handling code
ARXML: fix a few coding style mishaps in the new reference handling code

Signed-off-by: Andreas Lauser <429495c8e182c230dc2e2e45b7683abab22a535c@mbition.io>
Signed-off-by: Oliver Kopp <145f9cd3bd4b8f6f87f6a0c88db241a6cbaa88bd@mbition.io>

eerimoq/cantools,cantools/cantools