nxtweaks: Rewrite nxtweaks implementation

* After fixing encryption, nxtweaks settings
  weren't applied in correct sequence.
* This patch fixes sequencing and tunes it
  further.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
ramdisk: multiple updates

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>