Document -M SS-600MP

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3745 c046a42c-6fe2-441c-8c8c-71466251a162

qemu-doc.texi

@@ -2013,7 +2013,7 @@ qemu-system-sparc -prom-env 'auto-boot?=false' \
  -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
 @end example
 
-@item -M [SS-5|SS-10]
+@item -M [SS-5|SS-10|SS-600MP]
 
 Set the emulated machine type. Default is SS-5.