Fix speed feature skip_intra_in_interframe

Since all intra modes in inter frames has been collected
together to calculate their RD cost after other inter
modes. The setting and checking of skip_intra_in_interframe
are mis-matched. All checkings are done before settings.
This CL adds a new check in the intra modes' loop to
enable this speed feature.

For encoder, about 1.3% faster shows by encoding 20 frame
of BasketballDrill_832x480_50.y4m target 800kbps, and
according to AWCY test the average PSNR drops 0.01%.
( 276388 ms -> 272822 ms)



STATS_CHANGED expected

Change-Id: I5a0913cfbd0beb5aaaa1a53bdb5e92f569734e32

av1/encoder/rdopt.c

diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index 679e8ba..44e3861 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -11581,9 +11581,8 @@
     const MV_REFERENCE_FRAME second_ref_frame =
         av1_mode_order[mode_index].ref_frame[1];
     assert(ref_frame == INTRA_FRAME);
-
+    if (sf->skip_intra_in_interframe && search_state.skip_intra_modes) break;
     init_mbmi(mbmi, mode_index, cm);
-
     x->skip = 0;
     set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);