drivers: video: csi: Rename sensor to source

The CSI can connect to either a camera sensor (as on i.MX RT10xx) or
a MIPI CSI-2 receiver (as on i.MX RT11xx). To be generic, change the
naming from sensor to source.

Signed-off-by: Phi Bang Nguyen <phibang.nguyen@nxp.com>
4 files changed