Since we don't install depends for building anymore, u-boot-tools which provides mkimage did not get installed for CI builds. Add it to makedepends. Part-of: https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/6342
Since we don't install depends for building anymore, u-boot-tools which provides mkimage did not get installed for CI builds. Add it to makedepends. Part-of: https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/6342