av1_copy_pc_tree_recursive: copy ref_mv_bank and warp_param_bank

av1_copy_pc_tree_recursive() function is called from
av1_rd_pick_partition() when we find a counterpart block.

In that case, we copy the two banks to `xd`, but the copying inside
`pc_tree` nodes was missing.

av1/encoder/context_tree.c

diff --git a/av1/encoder/context_tree.c b/av1/encoder/context_tree.c
index f8e4822..5da7ab7 100644
--- a/av1/encoder/context_tree.c
+++ b/av1/encoder/context_tree.c
@@ -315,6 +315,13 @@
   dst->rd_cost = src->rd_cost;
   dst->none_rd = src->none_rd;
   dst->skippable = src->skippable;
+#if CONFIG_C043_MVP_IMPROVEMENTS
+  dst->ref_mv_bank = src->ref_mv_bank;
+#endif  // CONFIG_C043_MVP_IMPROVEMENTS
+#if WARP_CU_BANK
+  dst->warp_param_bank = src->warp_param_bank;
+#endif  // WARP_CU_BANK
+
   const BLOCK_SIZE bsize = dst->block_size;
   const BLOCK_SIZE subsize = get_partition_subsize(bsize, src->partitioning);
   const int mi_row = src->mi_row;