Fixing fourcc for VP8 and VP9.

Changing 0x00 ('') fourcc byte to 0x30 ('0'). For VP8 from
0x00385056 to 0x30385056, for VP9 from 0x00395056 to 0x30395056.

Change-Id: I26b1b603c20dd41f7aeabf8cd7893dfd5b1c8b59

vpxenc.c

@@ -89,8 +89,8 @@ static size_t wrap_fwrite(const void *ptr, size_t size, size_t nmemb,
 
 static const char *exec_name;
 
-#define VP8_FOURCC (0x00385056)
-#define VP9_FOURCC (0x00395056)
+#define VP8_FOURCC (0x30385056)
+#define VP9_FOURCC (0x30395056)
 static const struct codec_item {
   char const              *name;
   const vpx_codec_iface_t *(*iface)(void);