[ARM] pxa: make it clear by converting MMC 'delay_detect' to millisecond

delay_detect in HZ is confusing, convert it to be millisecond based. And
thus remove those unnecessary call to msecs_to_jiffies() at runtime for
this field. Other constants are converted assuming HZ == 100, which are
basically true for those platforms.

The assignment in csb726.c was incorrect, and is fixed in this patch as
a result.

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Marc Zyngier <maz@misterjones.org>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Daniel Mack <daniel@caiaq.de>
diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index c837318..f5d1ae3 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -291,7 +291,7 @@
 	.gpio_card_detect	= GPIO96_ZIPITZ2_SD_DETECT,
 	.gpio_power		= -1,
 	.gpio_card_ro		= -1,
-	.detect_delay		= 20,
+	.detect_delay_ms	= 200,
 };
 
 static void __init z2_mmc_init(void)