rngd mod

Merged script rngd startup init.d into 98SONIC_SHOCK
Added a wrapper script that verifies that rngd is going to stay alive for the long-haul. (in case /data/ wasn't RW yet or something)
    Script exits after ~20 seconds of rngd suicide-watch.
Added test script that watches the available entropy value in /proc.
    This value should be HIGH (~3000+) if rngd is working right.

Change-Id: If01baffcf4f105a953fb5511289cff618cbc593b
Fix rngd, fix init.d

I'm a smrat koder.
**kicks self in head**

Change-Id: If0848d680700c3987c7bbdb417fa034fe2f61b2d