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/bindings/tactility,gps-generic.yaml

@@ -0,0 +1,17 @@
+description: >
+  Generic UART-connected GPS/GNSS receiver. Supports MTK, Airoha/AG33xx, ATGM336H/CASIC,
+  Unicore UC6580 and u-blox 6/7/8/9/10 chipsets, either auto-probed or fixed via 'model'.
+
+compatible: "tactility,gps-generic"
+
+properties:
+  baud-rate:
+    type: int
+    required: true
+    description: UART baud rate, e.g. 9600 or 38400
+  model:
+    type: int
+    default: 0
+    description: |
+      GpsModel enum value (see gps/gps.h, e.g. GPS_MODEL_UBLOX10 = 12). Defaults to
+      GPS_MODEL_UNKNOWN (0), which triggers an autoprobe on start().