You can use any brand of 10 speed crank with any other brand of drivetrain.
I've found that some of the info posted about chainring spacing being different among the brands is exaggerated.
Campy did machine the mounting surfaces of the big ring .4mm thinner back in 2000 when 10 speed came out. Shimano did much the same, but with the little ring when they came out with 9 speed, a few year earlier. Campy machined the big ring mounting surfaces another .6mm thinner for 11 speed. That should make the chainring spacing a full 1mm closer with 11 speed, but it is not. I measured one of my 11 speed cranks and found the tooth to tooth spacing to be 7.7mm. A 2003 model FSA 9/10 speed crank has a nearly identical spacing of 7.8mm. Apparently the changes to the mounting surfaces are being used to place more material in the ramp area of the big ring, but not change the tooth spacing significantly.