libvpx: Pull from upstream

source/libvpx/vp8/encoder/encodeframe.c

Index: source/libvpx/vp8/encoder/encodeframe.c
===================================================================
--- source/libvpx/vp8/encoder/encodeframe.c	(revision 293588)
+++ source/libvpx/vp8/encoder/encodeframe.c	(working copy)
@@ -82,6 +82,7 @@
 {
     unsigned int act;
     unsigned int sse;
+    (void)cpi;
     /* TODO: This could also be done over smaller areas (8x8), but that would
      *  require extensive changes elsewhere, as lambda is assumed to be fixed
      *  over an entire MB in most of the code.
@@ -1149,6 +1150,8 @@
         while (++b < 16);
     }
 
+#else
+    (void)cpi;
 #endif
 
     ++x->ymode_count[m];