iommu: Fix typo in iommu

Correct spelling typo in debug messages and comments
in drivers/iommu.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 9a114b9..4407d5e 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -317,7 +317,7 @@
 	if ((itype >= SYSMMU_FAULTS_NUM) || (itype < SYSMMU_PAGEFAULT))
 		itype = SYSMMU_FAULT_UNKNOWN;
 
-	pr_err("%s occured at 0x%lx(Page table base: 0x%lx)\n",
+	pr_err("%s occurred at 0x%lx(Page table base: 0x%lx)\n",
 			sysmmu_fault_name[itype], fault_addr, pgtable_base);
 
 	ent = section_entry(__va(pgtable_base), fault_addr);