The struct initializer for set_platform_dma_ops uses a semicolon as
separator where a comma is required. Fix the compile error by using the
correct separator.

Fixes: c1fe9119 ("iommu: Add set_platform_dma_ops callbacks")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230113191528.23638-1-joro@8bytes.org