Document some missing options in configure -h Signed-off-by: Andreas Faerber <andreas.faerber@web.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7023 c046a42c-6fe2-441c-8c8c-71466251a162