Staging: lustre: lov: Pull assignments out of function call

Assignments in function call arguments are undesirable. So pull such
assignments out before function call.
Made a coccinelle script to detect such cases:
@@
expression fn,b,d;
@@
* fn(...,d=b,...);

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>