Driver improvements (#535)

- New drivers:
  - SD SPI
  - spi_peripheral
  - touch_placeholder
  - display_placeholder
- Devicetree compiler:
  - Implement phandle-arrays
  - Implement device addresses
- Add placeholder drivers to all devices with a SPI display
- SPI driver: add `cs-pins` and set them to high on driver start
- FileSystem: add `file_system_set_owner()` and `file_system_get_owner()`
- File locking is now checking if the related `FileSystem` is part of a shared SPI bus
- Add `device_get_child_count()`
- SDMMC driver: Remove default of `slot` value
- Fix for Crowpanel Basic 3.5" display (add delay to booting)
- Fix for LilyGO T-HMI SD card mounting (delayed mounting by disabling it initially in the dts)

Platforms/platform-esp32/source/drivers/esp32_sdcard.cpp

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: Apache-2.0
+#include <tactility/device.h>
+#include <tactility/driver.h>
+#include <tactility/drivers/esp32_sdcard.h>
+#include <tactility/drivers/esp32_sdspi.h>
+
+#include <soc/soc_caps.h>
+#if SOC_SDMMC_HOST_SUPPORTED
+#include <tactility/drivers/esp32_sdmmc.h>
+#endif
+
+extern "C" {
+
+sdmmc_card_t* esp32_sdcard_get_card(Device* device) {
+    auto* driver = device_get_driver(device);
+    if (driver_is_compatible(driver, "espressif,esp32-sdspi")) {
+        return esp32_sdspi_get_card(device);
+    }
+#if SOC_SDMMC_HOST_SUPPORTED
+    if (driver_is_compatible(driver, "espressif,esp32-sdmmc")) {
+        return esp32_sdmmc_get_card(device);
+    }
+#endif
+    return nullptr;
+}
+
+}