libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_loopfilter.c

Index: source/libvpx/vp9/common/vp9_loopfilter.c
diff --git a/source/libvpx/vp9/common/vp9_loopfilter.c b/source/libvpx/vp9/common/vp9_loopfilter.c
index 484e457df8d69e6f60bb593dcbd6f93683cb63b0..9816728364adfb87df1a5e8f6a2f350c40f4151f 100644
--- a/source/libvpx/vp9/common/vp9_loopfilter.c
+++ b/source/libvpx/vp9/common/vp9_loopfilter.c
@@ -267,8 +267,8 @@ void vp9_loop_filter_frame_init(VP9_COMMON *cm, int default_filt_lvl) {
 
   for (seg_id = 0; seg_id < MAX_SEGMENTS; seg_id++) {
     int lvl_seg = default_filt_lvl;
-    if (vp9_segfeature_active(seg, seg_id, SEG_LVL_ALT_LF)) {
-      const int data = vp9_get_segdata(seg, seg_id, SEG_LVL_ALT_LF);
+    if (segfeature_active(seg, seg_id, SEG_LVL_ALT_LF)) {
+      const int data = get_segdata(seg, seg_id, SEG_LVL_ALT_LF);
       lvl_seg = clamp(seg->abs_delta == SEGMENT_ABSDATA ?
                       data : default_filt_lvl + data,
                       0, MAX_LOOP_FILTER);