eMMC/SDIO3.0 boot issue

Description

There is a low possibility that the VisionFive 2 may fail to boot in eMMC or SDIO3.0 boot mode.

StarFive recommends that you use QSPI boot mode.
If you use eMMC/SDIO3.0 boot mode and VisionFive 2 fails to boot up:
- Confirm that the type of eMMC or SD card you used is included in the JH-7110 AVL.
- If the eMMC or SD card is in the AVL but VisionFive 2 still cannot boot up, StarFive recommends you try restarting the VisionFive 2 and then boot it again using the SD Card or eMMC mode.