staging: rtl8188eu: os_dep: Used min_t instead of min

This patch fixes this checkpatch.pl warning:
WARNING: min() should probably be min_t(int, req->essid_len,
IW_ESSID_MAX_SIZE)

by using this coccinelle script:

@r@
identifier i;
expression e1, e2;
type t1, t2;
@@

t1 i =
- min((t2)e1, e2);
+ min_t(t2, e1, e2);

Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>