Call ftdi_set_interface right after ftdi_init and before ftdi_usb_open

Else libftdi complains that it is impossible to set interface on an already
open device since 1c5fa36b67bc30742eee94ed3e3648fcd4640f24
(which will probably end up in libftdi 0.21).

Corresponding to flashrom svn r1573.
Signed-off-by: Ilya A. Volynets-Evenbakh <ilya@total-knowledge.com>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>

ft2232_spi.c

@@ -277,6 +277,10 @@ int ft2232_spi_init(void)
 		return -3;
 	}
 
+	if (ftdi_set_interface(ftdic, ft2232_interface) < 0) {
+		msg_perr("Unable to select interface: %s\n", ftdic->error_str);
+	}
+
 	f = ftdi_usb_open(ftdic, ft2232_vid, ft2232_type);
 
 	if (f < 0 && f != -5) {
@@ -291,11 +295,6 @@ int ft2232_spi_init(void)
 		clock_5x = 0;
 	}
 
-	if (ftdi_set_interface(ftdic, ft2232_interface) < 0) {
-		msg_perr("Unable to select interface: %s\n",
-				ftdic->error_str);
-	}
-
 	if (ftdi_usb_reset(ftdic) < 0) {
 		msg_perr("Unable to reset FTDI device\n");
 	}