Name
drm_get_format_name — 
     return a string for drm fourcc format
 
Synopsis
| const char * drm_get_format_name ( | uint32_t format ); | 
 
Arguments
- format
- 
     format to compute name of
     
Description
   Note that the buffer used by this function is globally shared and owned by
   the function itself.
FIXME
   This isn't really multithreading safe.