Removed cpu_to_le32 call on OWNED_BY_NIC. This will produce 0x01000000 on
big endian machines while rdesc0.owner still evaluates to 0x00000000 or
0x00000001. BTW, unless we reorder bit fields on big endian machines or
use u32's and cpu_to_le32'd bit mask macros, current code won't work on big
endian machines.
Signed-off-by: Tejun Heo <tj@home-tj.org>