MMC: MMCI: allow GPIOs to be passed

Add and initialize the gpio_wp and gpio_cd members.  We need to
ensure that all users are covered, because GPIO 0 may be valid.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
diff --git a/arch/arm/mach-versatile/versatile_pb.c b/arch/arm/mach-versatile/versatile_pb.c
index 7419451..9af8d81 100644
--- a/arch/arm/mach-versatile/versatile_pb.c
+++ b/arch/arm/mach-versatile/versatile_pb.c
@@ -44,6 +44,8 @@
 static struct mmc_platform_data mmc1_plat_data = {
 	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
 	.status		= mmc_status,
+	.gpio_wp	= -1,
+	.gpio_cd	= -1,
 };
 
 static struct pl061_platform_data gpio2_plat_data = {