Ran into this issue yesterday. As root:
cd /lib/modules/{your_kernel_version}/kernel/drivers/scsi/qla2xxx/
cp qla2xxx.ko qla2xxx_conf.ko
Voila. After this step, Standalone Converter has no problems during the building of the initial ram disk.
Rationale: After the P2V, the guest won't need ANY of the qla2xxx modules anyway, as the data on the mounted SAN filesystems will be copied into a vmdk file. Kudzu will remove the HBA drivers once you boot the VM, and all qla2xxx* kernel modules become obsolete. If the building of the boot ram disk insists on the non-existent kernel module file qla2xxx_conf.ko, why not give it one...