uuid: add missing MODULE_DESCRIPTION() macro

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_uuid.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Jeff Johnson <[e-mail]>
Acked-by: Andy Shevchenko <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>

lib/test_uuid.c

···
 module_exit(test_uuid_exit);
 
 MODULE_AUTHOR("Andy Shevchenko <[e-mail]>");
+MODULE_DESCRIPTION("Test cases for lib/uuid.c module");
 MODULE_LICENSE("Dual BSD/GPL");