fix 32 bit build
fix 32 bit build

miguelinux/gummiboot2systemd-boot,trilean/gummiboot,freedesktop-unofficial-mirror/gummiboot,freedesktop-unofficial-mirror/gummiboot,trilean/gummiboot,aaronp24/gummiboot,miguelinux/gummiboot2systemd-boot,aaronp24/gummiboot