iommu/amd: Fix sparse warning

CHECK   drivers/iommu/amd/iommu.c
drivers/iommu/amd/iommu.c:73:24: warning: symbol 'amd_iommu_ops' was not declared. Should it be static?
Signed-off-by: NVasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220912063248.7909-6-vasant.hegde@amd.comSigned-off-by: NJoerg Roedel <jroedel@suse.de>

drivers/iommu/amd/amd_iommu_types.h

@@ -461,6 +461,8 @@ struct irq_remap_table {
 /* Interrupt remapping feature used? */
 extern bool amd_iommu_irq_remap;
 
+extern const struct iommu_ops amd_iommu_ops;
+
 /* IVRS indicates that pre-boot remapping was enabled */
 extern bool amdr_ivrs_remap_support;
 

drivers/iommu/amd/init.c

@@ -95,8 +95,6 @@
  * out of it.
  */
 
-extern const struct iommu_ops amd_iommu_ops;
-
 /*
  * structure describing one IOMMU in the ACPI table. Typically followed by one
  * or more ivhd_entrys.