Use meson's files() to list the mojom files instead of the file names directly. This is so that we can still access the files from src/libcamera/ipa/meson.build later for building documentation cpp files from the mojom files. While at it, fix some redundant string manipulation in building the mojom modules. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>