[BUG] build all Bridle samples test runs into devicetree error

[rexut]

Describe the bug
Zephyr upstream no longer supports the inflexible Kconfig object SDMMC_VOLUME_NAME and requires a proper name setup on Device tree level by the new property disk-name.

To Reproduce
Steps to reproduce the behavior:

1. proper Bridle workspace setup from main branch

2. west twister \
          --jobs 4 \
          --verbose \
          --inline-logs \
          --integration \
          --testsuite-root bridle/samples/helloshell
   

3. See error below…

Expected behavior
Test suite runs properly without any error.

Impact
Showstopper, because the CI pipeline will fail.

Logs and console output

devicetree error: 'disk-name' is marked as required in 'properties:'
  in .../zephyr/dts/bindings/sd/zephyr,sdmmc-disk.yaml, but does not appear
  in <Node /soc/spi@4003c000/sdhc@0/mmc in '.../zephyr/misc/empty_file.c'>

Screenshots
None.

Development Environment (please complete the following information):

• OS: Linux
• Toolchain: West v1.3.0, CMake v3.28.1, Sphinx v8.1.3, Doxygen v1.9.8
• Branch: main, Zephyr v4.0.0-rc2 (upstream main)

Additional context
Add the missing property in Bridle's Devicetree includes.

Procedure

See: zephyrproject-rtos/zephyr#80709 – SDMMC and MMC subsystem disk drivers rework

Since zephyrproject-rtos/zephyr@a1dc0b8 Zephyr upstream has removed CONFIG_SDMMC_VOLUME_NAME, and set the disk name based on the disk-name property. This aligns with other disk drivers, and allows for multiple instances of the sdmmc_subsys disk driver to be registered.

Bridle uses the sdmmc_subsys disk driver in following boards and shields:

• Waveshare RP2040-Geek:

  bridle/boards/waveshare/rp2040/rpigeek_mmc_sdcard.dtsi

  Lines 25 to 29 in d4da4c7

  	/* Secure Digital card as Multi-Media Card (SDMMC) */
  	mmc {
  	compatible = "zephyr,sdmmc-disk";
  	status = "okay";
  	};

• Waveshare Pico ResTouch LCD 2.8:

  bridle/boards/shields/rpi_pico_lcd/boards/waveshare_pico_restouch_lcd_2_8/sdhc_spi_sdmmc.dtsi

  Lines 15 to 19 in d4da4c7

  	/* Secure Digital card as Multi-Media Card (SDMMC) */
  	mmc {
  	compatible = "zephyr,sdmmc-disk";
  	status = "okay";
  	};

• Waveshare Pico ResTouch LCD 3.5:

  bridle/boards/shields/rpi_pico_lcd/boards/waveshare_pico_restouch_lcd_3_5/sdhc_spi_sdmmc.dtsi

  Lines 15 to 19 in d4da4c7

  	/* Secure Digital card as Multi-Media Card (SDMMC) */
  	mmc {
  	compatible = "zephyr,sdmmc-disk";
  	status = "okay";
  	};