drivers/atm: Correct code taking the size of a pointer

sizeof(TstSchedTbl) is just the size of the pointer.  Change it to the size
of the referenced data.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression *x;
expression f;
type T;
@@

*f(...,(T)x,...)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/atm/iphase.c

@@ -557,7 +557,7 @@ static int ia_cbr_setup (IADEV *dev, struct atm_vcc *vcc) {
           memcpy((caddr_t)&cbrVC,(caddr_t)TstSchedTbl,sizeof(cbrVC));
        } /* while */
        // Move this VCI number into this location of the CBR Sched table.
-       memcpy((caddr_t)TstSchedTbl, (caddr_t)&vcIndex,sizeof(TstSchedTbl));
+       memcpy((caddr_t)TstSchedTbl, (caddr_t)&vcIndex, sizeof(*TstSchedTbl));
        dev->CbrRemEntries--;
        toBeAssigned--;
    } /* while */