Increase the number of DP interrupts to 16. The interrupt assignment
table is updated to add new values for different MSI interrupts
available. 9, 10 and 11 MSIs configuration will take the same
configuration as that of 8 MSI. 13, 14 and 15 MSIs configuration
will take the same configuration as that of 12 MSI. New MSI assignment
configuration is introduced for 12 and 16 MSIs.
Change-Id: I82af75b21c793a62fc8f0bd5515e1160b601c0c2
CRs-Fixed: 3209397
e34a1ed32c