MAINTAINERS: Add an ARM SMMU section

Add a new ARM SMMU section and set Eric Auger as the maintainer
for ARM SMMU emulation sources.
Signed-off-by: NEric Auger <eric.auger@redhat.com>
Message-id: 20181122180143.14237-1-eric.auger@redhat.com
Suggested-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

MAINTAINERS

@@ -151,6 +151,13 @@ F: disas/arm.c
 F: disas/arm-a64.cc
 F: disas/libvixl/
 
+ARM SMMU
+M: Eric Auger <eric.auger@redhat.com>
+L: qemu-arm@nongnu.org
+S: Maintained
+F: hw/arm/smmu*
+F: include/hw/arm/smmu*
+
 CRIS
 M: Edgar E. Iglesias <edgar.iglesias@gmail.com>
 S: Maintained