iommu/arm-smmu-v3: Fix trivial typo

Set "cmq" -> "cmdq".
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Will Deacon <will@kernel.org>

drivers/iommu/arm-smmu-v3.c

@@ -1479,7 +1479,7 @@ static int arm_smmu_cmdq_issue_cmdlist(struct arm_smmu_device *smmu,
 		}
 
 		/*
-		 * Try to unlock the cmq lock. This will fail if we're the last
+		 * Try to unlock the cmdq lock. This will fail if we're the last
 		 * reader, in which case we can safely update cmdq->q.llq.cons
 		 */
 		if (!arm_smmu_cmdq_shared_tryunlock(cmdq)) {