[RFC v2] TI Reset Driver adapted to the reset core

[Dan Murphy]

All

I have made some big changes to this patchset so I did not put all the
changes in the patches themselves.

In brief

- I removed the object data files for each SoC and moved the data into
the DT.  I updated the binding document as well

- The DT implementation creates a parent reset node with the base offset
for each reset and the children within that parent declares the bit mask

- I created a xlate function in the reset driver to verify that reset
data and that the phandle exists.  The core xlate checks for the nr_resets
which we don't care about since we are not indexed based.

- Made the driver a platform driver as well so this removed the
prm_common patch as well as the header file.

I will add other TI devices once I feel comfortable that the design
is acceptable.

Dan