MAINTAINERS: Update QUALCOMM IOMMU after Arm SMMU drivers move

Commit e86d1aa ("iommu/arm-smmu: Move Arm SMMU drivers into their own
subdirectory") moved drivers/iommu/qcom_iommu.c to
drivers/iommu/arm/arm-smmu/qcom_iommu.c amongst other moves, adjusted some
sections in MAINTAINERS, but missed adjusting the QUALCOMM IOMMU section.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:

  warning: no file matches    F:    drivers/iommu/qcom_iommu.c

Update the file entry in MAINTAINERS to the new location.

Signed-off-by: Lukas Bulwahn <[email protected]>
Acked-by: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>

Author: bulwahn

MAINTAINERS

@@ -14366,7 +14366,7 @@ M:	Rob Clark <[email protected]>
 L:	[email protected]
 L:	[email protected]
 S:	Maintained
-F:	drivers/iommu/qcom_iommu.c
+F:	drivers/iommu/arm/arm-smmu/qcom_iommu.c
 
 QUALCOMM IPCC MAILBOX DRIVER
 M:	Manivannan Sadhasivam <[email protected]>