MAINTAINERS: Add an entry for the Dino machine

Add Richard as maintainer, and Helge as reviewer.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[thuth: Add the machine entry alphabetically]
Signed-off-by: Thomas Huth <thuth@redhat.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index d81f9c4..892d2c4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -851,6 +851,15 @@
 F: hw/cris/axis_dev88.c
 F: hw/*/etraxfs_*.c
 
+HP-PARISC Machines
+------------------
+Dino
+M: Richard Henderson <rth@twiddle.net>
+R: Helge Deller <deller@gmx.de>
+S: Odd Fixes
+F: hw/hppa/
+F: pc-bios/hppa-firmware.img
+
 LM32 Machines
 -------------
 EVR32 and uclinux BSP