More SEEK_* usage

That coccinelle script works better without the semicolons (duh):

@rule0@
expression A,B;
@@
- lseek(A, B, 0)
+ lseek(A, B, SEEK_SET)
@rule1@
expression A,B;
@@
- lseek(A, B, 1)
+ lseek(A, B, SEEK_CUR)
@rule2@
expression A,B;
@@
- lseek(A, B, 2)
+ lseek(A, B, SEEK_END)