nvc0: fix transfer of larger rectangles with DmaCopy on gk104 and up

nvc0: fix transfer of larger rectangles with DmaCopy on gk104 and up

By treating the rectangles as 1cpp, we can run up against some internal
copy engine limits and trigger a MEM2MEM_RECT_OUT_OF_BOUNDS error check
at launch time.

This commit enables the REMAP hardware, which allows us to specify both
the component size and number of components for a transfer.  We're then
able to pass in the real width/nblocksx values and not hit the limits.

There's a couple of "supported" CPPs in the list that we can't actually
hit, but are there simply because they're possible.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>