Add a default configuration file for 802.1AS aka gPTP.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>

gPTP.cfg

@@ -0,0 +1,32 @@
+#
+# Default Data Set
+#
+twoStepFlag		1
+slaveOnly		0
+priority1		248
+priority2		248
+domainNumber		0
+clockClass		248
+clockAccuracy		0xFE
+offsetScaledLogVariance	0xFFFF
+#
+# Port Data Set
+#
+logAnnounceInterval	1
+logSyncInterval		-3
+logMinPdelayReqInterval	0
+announceReceiptTimeout	3
+#
+# Run time options
+#
+assume_two_step		1
+tx_timestamp_retries	2
+rx_timestamp_l2only	1
+pi_proportional_const	0.0
+pi_integral_const	0.0
+#
+# Transport options
+#
+transportSpecific	0x1
+ptp_dst_mac		01:80:C2:00:00:0E
+p2p_dst_mac		01:80:C2:00:00:0E