Add more driver slots in 6.4 kernels
Bobby Santucci is hitting the driver limit in 6.4 kernels. He's trying to migrate his BPM systems to 6.4, since our group officially deprecated the 5.x kernels. The BPM front-ends use Echotek cards where the driver was written by Computing Division. CD decided to write it as an actual VxWorks device driver so each instance of hardware uses up a device handle. By default, our 6.4 kernels have room for 20 devices and it uses 13 for itself. That leaves only 7 for Bobby and he needs at least ten.
We need to update the v6.4, 5500 image to have at least 30 slots (if not more.)