radeonsi: set a better NUM_PATCHES hard limit

AMDVLK uses 64 (distributed) and 16 (non-distributed).
radeonsi will use 63 and 16.
* This might improve tessellation performance on Hawaii, Bonaire, Tahiti,
  Pitcairn. (they will use 16)
* I'm not sure if this matters for 1 SE configs.

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
1 file changed