Tegra186: mce: enable LATIC for chip verification

Tegra186: mce: enable LATIC for chip verification

This patch adds a new interface to allow for making an ARI call that
will enable LATIC for the chip verification software harness.

LATIC allows some MINI ISMs to be read in the CCPLEX. The ISMs are
used for various measurements relevant ot particular locations in
Silicon. They are small counters which can be polled to determine
how fast a particular location in the Silicon is.

Original change by Guy Sotomayor <gsotomayor@nvidia.com>

Change-Id: Ifb49b8863a009d4cdd5d1ba38a23b5374500a4b3
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>