ptp: drivers: set the number of programmable pins.

This patch updates the many PTP Hardware Clock drivers with the
newly introduced field that advertises the number of programmable
pins. Some of these devices do have programmable pins, but the
implementation will have to wait for follow on patches.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/ptp/ptp_ixp46x.c b/drivers/ptp/ptp_ixp46x.c
index 4a08727..604d340 100644
--- a/drivers/ptp/ptp_ixp46x.c
+++ b/drivers/ptp/ptp_ixp46x.c
@@ -244,6 +244,7 @@
 	.name		= "IXP46X timer",
 	.max_adj	= 66666655,
 	.n_ext_ts	= N_EXT_TS,
+	.n_pins		= 0,
 	.pps		= 0,
 	.adjfreq	= ptp_ixp_adjfreq,
 	.adjtime	= ptp_ixp_adjtime,