sf: Restrict GPU tile render feature to MAX_LAYER_COUNT

- When number of layers exceed MAX_LAYER_COUNT, the compType
  array that is used in tile render feature overflows which
  leads to memory corruption causing random crash.
- To avoid this possible memory corruption, limit GPU tile render
  feature to MAX_LAYER_COUNT.

Change-Id: I42a4245345aa689d0254843686d52eb8c6724955
CRs-Fixed: 863707