Bsize threshold change in 2-pass inter mode search

A change the block size threshold makes type 2 slower
than type 1, but slightly better in coding efficiency.

Change-Id: Ia88da2b40f1a02265c84d258693b2092722856ac
diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 77bd01f..2d815e6 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -12605,7 +12605,7 @@
   const int do_tx_search_global =
       !((cpi->sf.inter_mode_rd_model_estimation == 1 && md->ready) ||
         (cpi->sf.inter_mode_rd_model_estimation == 2 &&
-         num_pels_log2_lookup[bsize] >= 8));
+         num_pels_log2_lookup[bsize] > 8));
   InterModesInfo *inter_modes_info = x->inter_modes_info;
   inter_modes_info->num = 0;