Fix comparison av1_get_ref_frames to match comment

Bug: 471809569
Change-Id: I9ab3c56986906397175a901d02b02e0bc49373fa

av1/encoder/encode_strategy.c

diff --git a/av1/encoder/encode_strategy.c b/av1/encoder/encode_strategy.c
index f067e02..e4b0a37 100644
--- a/av1/encoder/encode_strategy.c
+++ b/av1/encoder/encode_strategy.c
@@ -1145,7 +1145,7 @@
 
   // Do not map GOLDEN and ALTREF based on their pyramid level if all reference
   // frames have the same level.
-  if (n_min_level_refs <= n_bufs) {
+  if (n_min_level_refs < n_bufs) {
     // Map the GOLDEN_FRAME.
     if (golden_idx > -1)
       add_ref_to_slot(&buffer_map[golden_idx], remapped_ref_idx, GOLDEN_FRAME);