ARM: tegra: Check only last bit for cluster check

ARM: tegra: Check only last bit for cluster check

Only check the last bit when checking if on lp cluster.

Change-Id: Iecbfe447b2ea9d821d5f68c0fcc1a44f5e37d644
Signed-off-by: Sai Gurrappadi <sgurrappadi@nvidia.com>
Reviewed-on: http://git-master/r/428597
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>