make ecp_nistz256_point_add_vis3() local
fixes
@@ -2301,7 +2301,6 @@ my ($Z1sqr, $Z2sqr) = ($Hsqr, $Rsqr);
# !in1infty, !in2infty and result of check for zero.
$code.=<<___;
-.globl ecp_nistz256_point_add_vis3
.align 32
ecp_nistz256_point_add_vis3:
save %sp,-STACK64_FRAME-32*18-32,%sp
