Remove old HAL components and refactored GPS-related code (#583)

- Added generic GPS/GNSS support with device detection, configuration, and persistent settings.
- Improved device and module lifecycle management.
- Added flexible filesystem locking support for displays and storage.
- Improved display-idle and keyboard backlight handling.
- Updated architecture, driver, module, testing, and licensing documentation.
- Removed old HAL device and related code.

Drivers/gps-generic-module/include/gps_generic/bindings.h

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#include <tactility/bindings/bindings.h>
+#include <gps_generic/gps_generic.h>
+
+DEFINE_DEVICETREE(gps_generic, struct GpsConfig)

Drivers/gps-generic-module/include/gps_generic/gps_generic.h

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#include <gps/gps.h>
+#include <tactility/device.h>
+
+/**
+ * @brief Devicetree configuration for a generic UART-connected GPS/GNSS receiver.
+ */
+struct GpsConfig {
+    uint32_t baud_rate;
+    /** GPS_MODEL_UNKNOWN triggers an autoprobe on start(); the detected model is then available via get_model(). */
+    enum GpsModel model;
+};
+
+#ifdef __cplusplus
+}
+#endif

Drivers/gps-generic-module/include/gps_generic/gps_generic_module.h

@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern struct Module gps_generic_module;
+
+#ifdef __cplusplus
+}
+#endif