Use the new kmem API functions in core gk20a code. Also add a struct
gk20a pointer to several functions to ensure that the kmem APIs can be
used.
Bug 1799159
Bug 1823380
Change-Id: I41276509c4f0b68e80b989aa55cf94d8dbbdf156
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1318322
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>