random: entropy tweaks are all the rage nowadays

use nonblocking for all.  Read this web page:
http://lwn.net/Articles/489734/

Signed-off-by: Dan Trifan <jimsth@gmail.com>
input: move add_input_randomness - patch from Google Code issue 42265
comment 162

Signed-off-by: Dan Trifan <jimsth@gmail.com>
board-tuna-sensors.c: merge Kalim fix to toroplus compass bug.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Signed-off-by: Dan Trifan <jimsth@gmail.com>
OMAP4: cpuidle: Add last_residency trace event for residency profiling

Signed-off-by: Dan Trifan <jimsth@gmail.com>