misc: uidstat: avoid create_stat() race and blockage.

* create_stat() race would lead to:
  [   58.132324] proc_dir_entry 'uid_stat/10061' already registered

* blocking kmalloc reported by sbranden
 tcp_read_sock()
  uid_stat_tcp_rcv()
    create_stat()
      kmalloc(GFP_KERNEL)

Signed-off-by: JP Abgrall <jpa@google.com>
Revert "Let the device go into LP mode"

This reverts commit 3551e9e2557fb68406ca9a7c5ca7790cd3b4f2ad.
Cleanup cpu-tegra3
Adjust cpuquiet defines
board/cpu-tegra3: Additional runnable threat edits necessary for compilation option

Change-Id: I1fa2fab02582e987314ae7e23342c09c78d042af
board/cpu-tegra3: make runnable thread as a compilation option

Conflicts:
	arch/arm/mach-tegra/cpu-tegra3.c

Change-Id: I6901002cdc792877651137fa5588ca7e0dd86bed

Conflicts:
	arch/arm/mach-tegra/Kconfig