staging: rtl8192e: Fix LONG_LING in rtllib_parse_info_param()

Take out MIFE_TYPE_HT_CAP processing into separate function -
rtllib_parse_mfie_ht_cap()

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>