Rename vp8/ codec directory to vp9/.

Change-Id: Ic084c475844b24092a433ab88138cf58af3abbe4

example_xma.c

diff --git a/example_xma.c b/example_xma.c
index f5c0916..7aa8798 100644
--- a/example_xma.c
+++ b/example_xma.c
@@ -18,7 +18,7 @@
 #include "vpx_config.h"
 #include "vpx/vpx_decoder.h"
 #include "vpx/vpx_integer.h"
-#if CONFIG_VP8_DECODER
+#if CONFIG_VP9_DECODER
 #include "vpx/vp8dx.h"
 #endif
 
@@ -29,8 +29,8 @@
   const char *name;
   const vpx_codec_iface_t *iface;
 } ifaces[] = {
-#if CONFIG_VP8_DECODER
-  {"vp8",  &vpx_codec_vp8_dx_algo},
+#if CONFIG_VP9_DECODER
+  {"vp9",  &vpx_codec_vp8_dx_algo},
 #endif
 };