feat(bat): set charging current 2.8a

lin

2025-08-01 633231e833e21d5b8b1c00cb15aedb62b3b78e8f

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V4L2_CTRL_FLAG_DISABLED
V4L2_CTRL_FLAG_GRABBED
V4L2_CTRL_FLAG_READ_ONLY
V4L2_CTRL_FLAG_UPDATE
V4L2_CTRL_FLAG_INACTIVE
V4L2_CTRL_FLAG_SLIDER
V4L2_CTRL_FLAG_WRITE_ONLY
V4L2_CTRL_FLAG_VOLATILE
V4L2_CTRL_FLAG_HAS_PAYLOAD
V4L2_CTRL_FLAG_EXECUTE_ON_WRITE
V4L2_CTRL_FLAG_MODIFY_LAYOUT