iommu: omap: Fix compile failure

Fix compile failure in drivers/iommu/omap-iommu-debug.c
because of missing module.h include.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c
index 9c192e7..288da5c 100644
--- a/drivers/iommu/omap-iommu-debug.c
+++ b/drivers/iommu/omap-iommu-debug.c
@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/module.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
diff --git a/drivers/iommu/omap-iovmm.c b/drivers/iommu/omap-iovmm.c
index e8fdb88..46be456 100644
--- a/drivers/iommu/omap-iovmm.c
+++ b/drivers/iommu/omap-iovmm.c
@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/module.h>
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>