I am not familiar with the BCM432363B; are you sure there is not a typo in the PN?
It sounds like this is a chip level IC design, on Linux. None of which is supported here on the community.
Who enabled you with this product in your region? What partner module will you use in production as we typically do not support chip level Wi-Fi designs outside of tier 1 customers.
Please contact the team that enabled you to engage on this device as they will need to line up the support needed.