AMD/IOMMU: address violations of MISRA C:2012 Rule 7.3

The xen sources contain violations of MISRA C:2012 Rule 7.3 whose headline
states:
"The lowercase character 'l' shall not be used in a literal suffix".

Use the "L" suffix instead of the "l" suffix, to avoid potential ambiguity.
If the "u" suffix is used near "L", use the "U" suffix instead, for consistency.

The changes in this patch are mechanical.

Signed-off-by: Gianluca Luparini <gianluca.luparini@bugseng.com>
Signed-off-by: Simone Ballarin <simone.ballarin@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>

xen/drivers/passthrough/amd/iommu_guest.c

@@ -87,7 +87,7 @@ static uint64_t dte_get_gcr3_table(const struct amd_iommu_dte *dte)
 static void dte_set_gcr3_table(struct amd_iommu_dte *dte, uint16_t dom_id,
                                uint64_t addr, bool gv, uint8_t glx)
 {
-#define GCR3_MASK(hi, lo) (((1ul << ((hi) + 1)) - 1) & ~((1ul << (lo)) - 1))
+#define GCR3_MASK(hi, lo) (((1UL << ((hi) + 1)) - 1) & ~((1UL << (lo)) - 1))
 
     /* I bit must be set when gcr3 is enabled */
     dte->i = true;

xen/drivers/passthrough/amd/iommu_map.c

@@ -838,7 +838,7 @@ int cf_check amd_iommu_quarantine_init(struct pci_dev *pdev, bool scratch_page)
 {
     struct domain_iommu *hd = dom_iommu(dom_io);
     unsigned long end_gfn =
-        1ul << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT);
+        1UL << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT);
     unsigned int level = amd_iommu_get_paging_mode(end_gfn);
     unsigned int req_id = get_dma_requestor_id(pdev->seg, pdev->sbdf.bdf);
     const struct ivrs_mappings *ivrs_mappings = get_ivrs_mappings(pdev->seg);

xen/drivers/passthrough/amd/pci_amd_iommu.c

@@ -368,7 +368,7 @@ static int cf_check amd_iommu_domain_init(struct domain *d)
      */
     hd->arch.amd.paging_mode = max(amd_iommu_get_paging_mode(
             is_hvm_domain(d)
-            ? 1ul << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT)
+            ? 1UL << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT)
             : get_upper_mfn_bound() + 1),
         amd_iommu_min_paging_mode);