Define the endianness macro used in drm code corresponding to the value of BYTE_ORDER, this makes radeondrm(4) usable on big-endian archs.
Define the endianness macro used in drm code corresponding to the
value of BYTE_ORDER, this makes radeondrm(4) usable on big-endian
archs.

ok kettenis@, deraadt@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars