iommu: Move IOMMU_DIRTY_NO_CLEAR define

Fixes the compile issue when CONFIG_IOMMU_API is not set.

Fixes: 4fe88fd8 ("iommu/io-pgtable-arm: Add read_and_clear_dirty() support")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407121602.HL9ih1it-lkp@intel.com/Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240712113132.45100-1-shameerali.kolothum.thodi@huawei.comSigned-off-by: Will Deacon <will@kernel.org>

include/linux/iommu.h

@@ -317,6 +317,9 @@ enum iommu_dev_features {
 #define IOMMU_PASID_INVALID	(-1U)
 typedef unsigned int ioasid_t;
 
+/* Read but do not clear any dirty bits */
+#define IOMMU_DIRTY_NO_CLEAR (1 << 0)
+
 #ifdef CONFIG_IOMMU_API
 
 /**
@@ -353,9 +356,6 @@ struct iommu_dirty_bitmap {
 	struct iommu_iotlb_gather *gather;
 };
 
-/* Read but do not clear any dirty bits */
-#define IOMMU_DIRTY_NO_CLEAR (1 << 0)
-
 /**
  * struct iommu_dirty_ops - domain specific dirty tracking operations
  * @set_dirty_tracking: Enable or Disable dirty tracking on the iommu domain