ARM: tegra: Get cluster ID by reading MPIDR

This is to avoid MMIO access, thus save a few processor cycles.

Change-Id: Ib4a2aaf8e991885baab51cd74a37387e91cfb5a8
Signed-off-by: Bo Yan <byan@nvidia.com>
Reviewed-on: http://git-master/r/171656
(cherry picked from commit 10b7f4ccbf961cbde6b2dec5eb789c1d3beb0f75)
Reviewed-on: http://git-master/r/198890
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
GVS: Gerrit_Virtual_Submit
2 files changed