staging: rtl8192su: remove re-declaration of counter i

variable i is declared integer in rtl8192SU_ConfigAdapterInfo8192SForAutoLoadFail.
a few lines down it is re-declared u8.
removed the re-declaration.
plus cosmetics

Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>