Fix sparc 64-bit GMP ifunc resolution in static builds.

	[BZ #16150]
	* sysdeps/sparc/sparc64/multiarch/add_n.S: Resolve to the correct generic
	symbol in the non-vis3 case in static builds.
	* sysdeps/sparc/sparc64/multiarch/addmul_1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/mul_1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/sub_n.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/submul_1.S: Likewise.