MAINTAINERS: Cover system/arm/cpu-features.rst with ARM TCG CPUs

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201120154545.2504625-2-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

MAINTAINERS

@@ -158,6 +158,7 @@ F: disas/arm.c
 F: disas/arm-a64.cc
 F: disas/libvixl/
 F: docs/system/target-arm.rst
+F: docs/system/arm/cpu-features.rst
 
 ARM SMMU
 M: Eric Auger <eric.auger@redhat.com>