msm_gpio: Add support for Qualcomm IPQ40xx

Snapdragon SoCs and IPQ40xx use common TLMM IP,
so existing driver supports IPQ40xx as well.

So lets simply add a compatible for IPQ40xx.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-By: Ramon Fried <rfried.dev@gmail.com>

doc/device-tree-bindings/gpio/gpio-msm.txt

@@ -1,7 +1,8 @@
 Qualcomm Snapdragon GPIO controller
 
 Required properties:
-- compatible : "qcom,msm8916-pinctrl" or "qcom,apq8016-pinctrl"
+- compatible : "qcom,msm8916-pinctrl", "qcom,apq8016-pinctrl" or
+				"qcom,ipq4019-pinctrl"
 - reg : Physical base address and length of the controller's registers.
 	This controller is called "Top Level Mode Multiplexing" in
 	Qualcomm documentation.

drivers/gpio/msm_gpio.c

@@ -118,6 +118,7 @@ static int msm_gpio_ofdata_to_platdata(struct udevice *dev)
 static const struct udevice_id msm_gpio_ids[] = {
 	{ .compatible = "qcom,msm8916-pinctrl" },
 	{ .compatible = "qcom,apq8016-pinctrl" },
+	{ .compatible = "qcom,ipq4019-pinctrl" },
 	{ }
 };