Fix a bug with the 3.3V code for the ricoh bridges. I got the bit
detect backwards. Also, we can only detect 3.3V cards when the GPI
interrupt is disabled. So when it is enabled assume 5.0V card.
Obtained from: NetBSD (takemura-san from patches by ngc@ff.iij4u.or.jp)
Approved by: re (blanket)