xhci: fixup incorrect memset size parameter when clearing up DbC on exit.

Incorrect size was given to memset when zeroing the DbC endpoint
structures on exit. Use element size * ARRAY_SIZE to fix it

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-dbgcap.c

@@ -366,7 +366,7 @@ static void xhci_dbc_eps_exit(struct xhci_hcd *xhci)
 {
 	struct xhci_dbc		*dbc = xhci->dbc;
 
-	memset(dbc->eps, 0, ARRAY_SIZE(dbc->eps));
+	memset(dbc->eps, 0, sizeof(struct dbc_ep) * ARRAY_SIZE(dbc->eps));
 }
 
 static int xhci_dbc_mem_init(struct xhci_hcd *xhci, gfp_t flags)