selfie cam: lots of baseaddr switching errors when streaming on 5.12

mostly after a mipi error too. works fine on 5.11 / i.e. the latest default kernel.

        [   92.385064] mxc-mipi-csi2_yav 30a70000.mipi_csi1: CSI 0 ERROR        
        [   92.390819] mxc-mipi-csi2_yav 30a70000.mipi_csi1: DPHY ErrSotSync    0x1

that's happening with all modes.