Tegra210: remove support for cluster power down

This patch removes support for powering down a CPU cluster on
Tegra210 platforms as none of them actually use it.

Change-Id: I9665634cf2b5b7b8a1b5a2700cae152dc9165fe3
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2 files changed