Revert "lavc/libx264: remap X264_LOG_INFO loglevel from AV_LOG_INFO to VERBOSE"

You should not need to enable verbose logging and all the output that comes
with it in order to get things like the obtained bitrate from a first
pass encode. Many things parse this output.

Also, since it is marked as info in libx264, it should be marked as
info in libavcodec as well.

This reverts commit 911519caec.

libavcodec/libx264.c

@@ -79,7 +79,7 @@ static void X264_log(void *p, int level, const char *fmt, va_list args)
     static const int level_map[] = {
         [X264_LOG_ERROR]   = AV_LOG_ERROR,
         [X264_LOG_WARNING] = AV_LOG_WARNING,
-        [X264_LOG_INFO]    = AV_LOG_VERBOSE,
+        [X264_LOG_INFO]    = AV_LOG_INFO,
         [X264_LOG_DEBUG]   = AV_LOG_DEBUG
     };