vp9-svc: Fix to key frame counter for spatial layers.

Existing condition only applied to temporal layers.

Change-Id: Icef20a59d0afc61d4e14dea01aff4786fa9e41ae

vp9/encoder/vp9_svc_layercontext.c

diff --git a/vp9/encoder/vp9_svc_layercontext.c b/vp9/encoder/vp9_svc_layercontext.c
index 1dfc45c..13da155 100644
--- a/vp9/encoder/vp9_svc_layercontext.c
+++ b/vp9/encoder/vp9_svc_layercontext.c
@@ -278,7 +278,8 @@
   cpi->alt_ref_source = lc->alt_ref_source;
   // Reset the frames_since_key and frames_to_key counters to their values
   // before the layer restore. Keep these defined for the stream (not layer).
-  if (cpi->svc.number_temporal_layers > 1) {
+  if (cpi->svc.number_temporal_layers > 1 ||
+      cpi->svc.number_spatial_layers > 1) {
     cpi->rc.frames_since_key = old_frame_since_key;
     cpi->rc.frames_to_key = old_frame_to_key;
   }