boards: shields: Add Seeed Grove Accelerometer (LIS3DHTR)

Add shield definition for Seeed's LIS3DHTR accelerometer.

This shield can take option to select connecting bus, so such like
following example.

```
west build -p -b m5stack_atoms3/esp32s3/procpu
--shield=seeed_grove_accel_lis3dhtr@1:addr=0x18 samples/sensor/lis2dh/
```

Signed-off-by: TOKITA Hiroshi <[email protected]>

boards/shields/seeed_grove_3axis_digital_accelerometer/Kconfig.shield

@@ -0,0 +1,5 @@
+# Copyright (c) 2024 TOKITA Hiroshi
+# SPDX-License-Identifier: Apache-2.0
+
+config SHIELD_SEEED_GROVE_LIS3DHTR
+	def_bool $(shields_list_contains,seeed_grove_lis3dhtr)

boards/shields/seeed_grove_3axis_digital_accelerometer/doc/index.rst

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+.. _seeed_grove_3axis_digital_accelerometer:
+
+Seeed Studio Grove 3-Axis Digital Accelerometer
+###############################################
+
+Overview
+********
+
+The Seeed Studio Grove 3-Axis Digital Accelerometer is a compact sensor module
+that provides digital output of 3-axis acceleration.
+There are several variations by the measurement range and chip.
+
+.. figure:: img/grove_3axis_digital_accelerometer_lis3dhtr.webp
+     :align: center
+     :alt: Grove - 3-Axis Digital Accelerometer (LIS3DHTR)
+
+     Grove - 3-Axis Digital Accelerometer (LIS3DHTR) (Credit: Seeed Studio)
+
+These allows for easy integration with Grove connector system.
+More information about the Grove connector system can be found at the
+`Grove Ecosystem Introduction`_.
+
+Hardware
+********
+
+Currently the following models are supported:
+
+- seeed_grove_lis3dhtr: see `Grove - 3-Axis Digital Accelerometer (LIS3DHTR)`_
+
+Programming
+***********
+
+Set ``--shield seeed_grove_accel_[sensor_model]`` when you invoke ``west build``.
+For example:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/sensor/sensor_shell
+   :board:  m5stack_core2/esp32/procpu
+   :shield: seeed_grove_accel_lis3dhtr
+   :goals: build
+
+This shield can take a option to tweaking.
+Such as connecting bus selection, i2c address, and etc.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/sensor/sensor_shell
+   :board: wio_terminal/samd51p19a
+   :shield: seeed_grove_accel_lis3dhtr@1:addr=0x18
+   :goals: build
+
+References
+**********
+
+.. target-notes::
+
+.. _Grove Ecosystem Introduction:
+   https://wiki.seeedstudio.com/Grove_System/
+
+.. _Grove - 3-Axis Digital Accelerometer (LIS3DHTR):
+   https://wiki.seeedstudio.com/Grove-3-Axis-Digital-Accelerometer-LIS3DHTR/

boards/shields/seeed_grove_3axis_digital_accelerometer/seeed_grove_accel.overlay

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+/*
+ * Copyright (c) 2024 TOKITA Hiroshi <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* For convenience, we use the same definitions as LIS3DHTR as the default for this series. */
+
+#include "seeed_grove_accel.overlay"

boards/shields/seeed_grove_3axis_digital_accelerometer/seeed_grove_accel_lis3dhtr.overlay

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+/*
+ * Copyright (c) 2024 TOKITA Hiroshi <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/gpio/gpio.h>
+#include <zephyr/dt-bindings/sensor/lis2dh.h>
+
+&SHIELD_CONN_N {
+	SHIELD_CONVENTIONAL_LABEL(lis3dh): lis3dh@SHIELD_ADDR_HEX {
+		compatible = "st,lis3dh", "st,lis2dh";
+		reg = <SHIELD_0X_ADDR>;
+
+#if SHIELD_OPTION_EXISTS(IRQ_GPIO_PIN) || SHIELD_OPTION_EXISTS(IRQ_GPIO_PORT)
+		irq-gpios = <&SHIELD_OPTION_STRING_UNQUOTED(IRQ_GPIO_PORT)
+			      SHIELD_OPTION(IRQ_GPIO_PIN)
+			      SHIELD_OPTION_STRING_UNQUOTED(IRQ_GPIO_FLAG)>;
+#endif
+	};
+};

boards/shields/seeed_grove_3axis_digital_accelerometer/shield.yml

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+shield:
+  name: seeed_grove_accel
+  full_name: Seeed Studio Grove - 3-Axis Digital Accelerometer
+  vendor: seeed
+  variants:
+    - name: lis3dhtr
+      full_name: Seeed Studio Grove - 3-Axis Digital Accelerometer (LIS3DHTR)
+      options:
+        addr:
+          default: 0x19
+        irq-gpio-pin:
+          type: int
+          default: 0
+        irq-gpio-port:
+          type: string
+          default: "gpio0"
+        irq-gpio-flag:
+          type: string
+          default: "GPIO_ACTIVE_HIGH"
+  options:
+    conn:
+      type: string
+      default: "grove_i2c"
+    addr:
+      type: int
+      default: 0x19