drivers: clock_control: mcux_sim: PTP clock

Add PTP clock get rate code

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>

drivers/clock_control/clock_control_mcux_sim.c

@@ -54,6 +54,9 @@ static int mcux_sim_get_subsys_rate(const struct device *dev,
 	case KINETIS_SIM_ENET_CLK:
 		clock_name = kCLOCK_CoreSysClk;
 		break;
+	case KINETIS_SIM_ENET_1588_CLK:
+		clock_name = kCLOCK_Osc0ErClk;
+		break;
 	default:
 		clock_name = (clock_name_t) sub_system;
 		break;

include/zephyr/dt-bindings/clock/kinetis_sim.h

@@ -25,6 +25,7 @@
 #define KINETIS_SIM_ER32KSEL_LPO1KHZ	3
 
 #define KINETIS_SIM_ENET_CLK		4321
+#define KINETIS_SIM_ENET_1588_CLK	4322
 
 
 #endif /* ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_KINETIS_SIM_H_ */