pcmcia: move Vpp setup to struct pcmcia_device

Some drivers prefer to explicitly set Vpp. Instead of passing the
voltage inside config_req_t, store it in struct pcmcia_device.

CC: linux-ide@vger.kernel.org
CC: netdev@vger.kernel.org
CC: linux-mtd@lists.infradead.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

include/pcmcia/ds.h

@@ -94,6 +94,7 @@ struct pcmcia_device {
 	/* device setup */
 	unsigned int		irq;
 	struct resource		*resource[PCMCIA_NUM_RESOURCES];
+	unsigned int		vpp;
 
 	unsigned int		io_lines; /* number of I/O lines */