The intel-ipu3.h header has moved in the v5.14 kernel. Update the kernel
headers update script accordingly.
While at it, add a missing directory separator to fix a failure when the
path to the kernel tree doesn't end with a /.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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