ARM: dts: logicpd-somlv: Fix interrupt on mmc3_dat1

The interrupt on mmc3_dat1 is wrong which prevents this from
appearing in /proc/interrupts.

Fixes: ab8dd3ae ("ARM: DTS: Add minimal Support for Logic PD
DM3730 SOM-LV") #Kernel 4.9+

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>