Update to opus-HEAD-66611f1.

silk/sum_sqr_shift.c

Index: silk/sum_sqr_shift.c
diff --git a/silk/sum_sqr_shift.c b/silk/sum_sqr_shift.c
index 12514c9917afa6bfc2a28684d236ee2d4d7c8c75..129df191d8ded4d84e003aea36d98a59a349dd47 100644
--- a/silk/sum_sqr_shift.c
+++ b/silk/sum_sqr_shift.c
@@ -53,6 +53,7 @@ void silk_sum_sqr_shift(
             /* Scale down */
             nrg = (opus_int32)silk_RSHIFT_uint( (opus_uint32)nrg, 2 );
             shft = 2;
+            i+=2;
             break;
         }
     }