UPSTREAM: iommu: Rename iommu-sva-lib.{c,h}

Rename iommu-sva-lib.c[h] to iommu-sva.c[h] as it contains all code
for SVA implementation in iommu core.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Tested-by: Tony Zhu <tony.zhu@intel.com>
Link: https://lore.kernel.org/r/20221031005917.45690-14-baolu.lu@linux.intel.com


Signed-off-by: Joerg Roedel <jroedel@suse.de>

(cherry picked from commit 757636ed)
Bug: 271394577
Change-Id: Ie6030ca74f7f8c1c3901736004bb3be48fa88d09
Signed-off-by: Michael Shavit <mshavit@google.com>