arm: omap: fix build for 2430sdp

Missing include file broke compilation for 2430sdp.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-2430sdp.c

@@ -20,6 +20,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/delay.h>
 #include <linux/input.h>
+#include <linux/i2c/twl4030.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/spi/spi.h>