trivial: Adjust the docs now CdTransform exists
trivial: Fix cd-find-broken when only scanning one profile
Fix building RGB working space profiles when using OpenBSD/sparc64

sizeof(size_t) is 8 on OpenBSD/sparc64, so it cannot be written via a pointer
to an unsigned 32 bit integer.

Signed-off-by: Richard Hughes <richard@hughsie.com>