ada: Follow-up adjustment to earlier fix in Build_Allocate_Deallocate_Proc

The profile of the procedure built for an allocation on the secondary stack
now includes the alignment parameter, so the parameter can just be forwarded
in the call to Allocate_Any_Controlled.

gcc/ada/

	* exp_util.adb (Build_Allocate_Deallocate_Proc): Pass the alignment
	parameter in the inner call for a secondary stack allocation too.