hw/i386/amd_iommu: Support MMIO writes to the status register

Support the writes to the status register so that guest can reset the
EventOverflow, EventLogInt, ComWaitIntr, etc bits after servicing the
respective interrupt.

Signed-off-by: Sairaj Kodilkar <sarunkod@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Message-Id: <20250801060507.3382-6-sarunkod@amd.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/i386/amd_iommu.c

@@ -862,6 +862,9 @@ static void amdvi_mmio_write(void *opaque, hwaddr addr, uint64_t val,
         amdvi_mmio_reg_write(s, size, val, addr);
         amdvi_handle_pprtail_write(s);
         break;
+    case AMDVI_MMIO_STATUS:
+        amdvi_mmio_reg_write(s, size, val, addr);
+        break;
     }
 }