ramdisk+AnyKernel2: a few more overdue script cleanups
dvbootscript:
- remove governor fix permissions, if there's a problem with the
governor's permissions it's a problem in the governor source
- move init.d creation to the beginning of dvbootscript, to make sure
dvmediarevert gets pushed correctly on the first boot

dvmediarevert
- add restoration of disabled sysctl.conf if it exists, to 100% reverse
any possible major system changes dvbootscript could make