add vs6621 support in android

lin

2025-08-21 57113df3a0e2be01232281fad9a5f2c060567981

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What:           /sys/block/rssd*/status
Date:           April 2012
KernelVersion:  3.4
Contact:        Asai Thambi S P <asamymuthupa@micron.com>
Description:    This is a read-only file. Indicates the status of the device.