mach-tegra: tegra_sleep_stats: fix runqueue stats info

Replace tegra_sleep_stats.c with the qualcom original (which it was
derived from anyway) and fix the tick-sched hooks which were not
present at all.

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>

Conflicts:

	arch/arm/mach-tegra/tegra_rq_stats.c
	kernel/time/tick-sched.c

Conflicts:

	arch/arm/mach-tegra/tegra_rq_stats.c
	kernel/time/tick-sched.c

Conflicts:
	kernel/time/tick-sched.c