bootflags are not pused to grub.conf

bootflags are applyed to grub-orig.conf but not to grub.conf

After the first boot /etc/init.d/rocks-grub will fix this
problem, but the very first time the node boot after the
re-install it will not get the flags specified in
rocks set host bootflags

Reported-by: Trevor Cooper <tcooper@sdsc.edu>