pps, ptp: Remove dependencies on EXPERIMENTAL

These are now established subsystems, and we want drivers to be able
to select PPS and PTP_1588_CLOCK without depending on EXPERIMENTAL.
Further, the use of EXPERIMENTAL is now deprecated in general.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 0cafe4f..9e49217 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -123,7 +123,7 @@
 config IGB_PTP
 	bool "PTP Hardware Clock (PHC)"
 	default n
-	depends on IGB && EXPERIMENTAL
+	depends on IGB
 	select PPS
 	select PTP_1588_CLOCK
 	---help---
@@ -225,7 +225,7 @@
 config IXGBE_PTP
 	bool "PTP Clock Support"
 	default n
-	depends on IXGBE && EXPERIMENTAL
+	depends on IXGBE
 	select PPS
 	select PTP_1588_CLOCK
 	---help---