libcamera has two formats.h headers, an internal one in include/libcamera/internal/, and a public one generated at build time. The convention is to prefix the internal header name with libcamera/internal/ in the Doxygen file directive, but formats.cpp only uses internal/ as a prefix. Unify it with the rest of the code base. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>