[buildd] dep-wait for suitesparse on libparmetis-dev

[Thomas Weber <thomas.weber.mail@gmail.com>]

Hi, 

suitesparse currently has a dep-wait on libparmetis-dev. Now, the reason for 
the -3 upload of suitesparse was precisely to get rid of the corresponding 
build-dep (libparmetis-dev is in non-free) :)

Can someone please drop the dep-wait?

Note: I'm not suitesparse's maintainer, but Octave is waiting for 
suitesparse ...

Thanks
	Thomas