boards: rd_rw612_bga: Enable counters

Enable CTimer0 and MRT0 channel 0 by default on the board,
and add more of the device instances in the counter api test overlay.

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

boards/nxp/rd_rw612_bga/doc/index.rst

@@ -51,6 +51,10 @@ Supported Features
 +-----------+------------+-----------------------------------+
 | WWDT      | on-chip    | watchdog                          |
 +-----------+------------+-----------------------------------+
+| CTIMER    | on-chip    | counter                           |
++-----------+------------+-----------------------------------+
+| MRT       | on-chip    | counter                           |
++-----------+------------+-----------------------------------+
 
 
 The default configuration can be found in the defconfig file:

boards/nxp/rd_rw612_bga/rd_rw612_bga.dtsi

@@ -128,3 +128,11 @@ arduino_i2c: &flexcomm2 {
 &dma0 {
 	status = "okay";
 };
+
+&mrt0_channel0 {
+	status = "okay";
+};
+
+&ctimer0 {
+	status = "okay";
+};

boards/nxp/rd_rw612_bga/rd_rw612_bga.yaml

@@ -21,3 +21,4 @@ supported:
   - i2c
   - entropy
   - watchdog
+  - counter

tests/drivers/counter/counter_basic_api/boards/rd_rw612_bga.overlay

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2023 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&ctimer1 {
+	status = "okay";
+};
+
+&ctimer2 {
+	status = "okay";
+};
+
+&ctimer3 {
+	status = "okay";
+};
+
+&mrt0_channel1 {
+	status = "okay";
+};
+
+&mrt0_channel3 {
+	status = "okay";
+};
+
+&mrt1_channel2 {
+	status = "okay";
+};
+
+&mrt1_channel3 {
+	status = "okay";
+};