commit 998d516d upstream.

key4 of micentry is used, if ATH_CRYPT_CAP_MIC_COMBINED is set.
But is not cleared on key cache reset.
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>