manifest: desc_size is size_t
manifest: desc_size is size_t

This matches the kernel code, and also fixes a build-time warning when
printing the output of desc_size.

Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@google.com>

gregkh/gbsim,bcousson/gbsim,bcousson/gbsim,projectara/gbsim,gregkh/gbsim,projectara/gbsim,bcousson/gbsim