arm: dts: qcom: Sync pinctrl DT nodes with Linux bindings

Currently for all Qcom SoCs/boards there are separate compatibles for
GPIO and pinctrl. But this is inconsistent with official (upstream) Linux
bindings which requires only a single compatible "qcom,<SoC name>-pinctrl"
and there is no such compatible property as "qcom,tlmm-<SoC name>".

So fix this inconsistency for Qcom SoCs in order to comply with upstream
DT bindings. This is done via removing compatibles from "msm_gpio" driver
and via binding to "msm_gpio" driver from pinctrl driver in case
"gpio-controller" property is specified for pinctrl node.

Suggested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
diff --git a/drivers/gpio/msm_gpio.c b/drivers/gpio/msm_gpio.c
index a3c3cd7..51670f2 100644
--- a/drivers/gpio/msm_gpio.c
+++ b/drivers/gpio/msm_gpio.c
@@ -116,20 +116,12 @@
 	return 0;
 }
 
-static const struct udevice_id msm_gpio_ids[] = {
-	{ .compatible = "qcom,msm8916-pinctrl" },
-	{ .compatible = "qcom,apq8016-pinctrl" },
-	{ .compatible = "qcom,ipq4019-pinctrl" },
-	{ .compatible = "qcom,sdm845-pinctrl" },
-	{ }
-};
-
 U_BOOT_DRIVER(gpio_msm) = {
 	.name	= "gpio_msm",
 	.id	= UCLASS_GPIO,
-	.of_match = msm_gpio_ids,
 	.of_to_plat = msm_gpio_of_to_plat,
 	.probe	= msm_gpio_probe,
 	.ops	= &gpio_msm_ops,
+	.flags	= DM_UC_FLAG_SEQ_ALIAS,
 	.priv_auto	= sizeof(struct msm_gpio_bank),
 };