MAINTAINERS: Add entries for SD (SDHCI, SDBus, SDCard)

After spending months studying all the different SD Specifications
from the SD Association, voluntarily add myself as maintainer
for the SD code.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180309153654.13518-9-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index f409f3b..354a18c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1100,6 +1100,14 @@
 S: Maintained
 F: hw/ssi/xilinx_*
 
+SD (Secure Card)
+M: Philippe Mathieu-Daudé <f4bug@amsat.org>
+S: Odd Fixes
+F: include/hw/sd/sd*
+F: hw/sd/core.c
+F: hw/sd/sd*
+F: tests/sd*
+
 USB
 M: Gerd Hoffmann <kraxel@redhat.com>
 S: Maintained