nanosleep: use freezable blocking call

Date	Wed, 1 May 2013 18:35:06 -0700

Avoid waking up every thread sleeping in a nanosleep call during
suspend and resume by calling a freezable blocking call.  Previous
patches modified the freezer to avoid sending wakeups to threads
that are blocked in freezable blocking calls.

This call was selected to be converted to a freezable call because
it doesn't hold any locks or release any resources when interrupted
that might be needed by another freezing task or a kernel driver
during suspend, and is a common site where idle userspace tasks are
blocked.

Signed-off-by: Colin Cross <ccross@android.com>
Random changes
 hub: fix various uninitialized variables

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>
 kernel/return_address.c: hide warning

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>
mpdec: updates :D
cpufreq: Update