drivers: counter: Add support for Apollo3 SoCs counter

This commit adds support for the counter which
can be found in Apollo3 SoCs

Signed-off-by: Hao Luo <hluo@ambiq.com>

boards/ambiq/apollo3_evb/apollo3_evb.dts

@@ -103,6 +103,38 @@
 	status = "okay";
 };
 
+&counter0 {
+	status = "okay";
+};
+
+&counter1 {
+	status = "okay";
+};
+
+&counter2 {
+	status = "okay";
+};
+
+&counter3 {
+	status = "okay";
+};
+
+&counter4 {
+	status = "okay";
+};
+
+&counter5 {
+	status = "okay";
+};
+
+&counter6 {
+	status = "okay";
+};
+
+&counter7 {
+	status = "okay";
+};
+
 &gpio0_31 {
 	status = "okay";
 };

boards/ambiq/apollo3_evb/apollo3_evb.yaml

@@ -10,6 +10,7 @@ toolchain:
 supported:
   - uart
   - watchdog
+  - counter
   - gpio
   - i2c
 testing:

boards/ambiq/apollo3p_evb/apollo3p_evb.dts

@@ -103,6 +103,38 @@
 	status = "okay";
 };
 
+&counter0 {
+	status = "okay";
+};
+
+&counter1 {
+	status = "okay";
+};
+
+&counter2 {
+	status = "okay";
+};
+
+&counter3 {
+	status = "okay";
+};
+
+&counter4 {
+	status = "okay";
+};
+
+&counter5 {
+	status = "okay";
+};
+
+&counter6 {
+	status = "okay";
+};
+
+&counter7 {
+	status = "okay";
+};
+
 &gpio0_31 {
 	status = "okay";
 };

boards/ambiq/apollo3p_evb/apollo3p_evb.yaml

@@ -10,6 +10,7 @@ toolchain:
 supported:
   - uart
   - watchdog
+  - counter
   - gpio
   - i2c
 testing: