ARM: omap3_logic: Power on MMC when setting up PMIC

The PMIC enables power to the MMC card by default, but depending
on the state it was left when restarted, it's possible the MMC
may be powered down.

This patch patch explicitly tells the twl4030 to power the MMC.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/board/logicpd/omap3som/omap3logic.c b/board/logicpd/omap3som/omap3logic.c
index ee77ce0..43f049e 100644
--- a/board/logicpd/omap3som/omap3logic.c
+++ b/board/logicpd/omap3som/omap3logic.c
@@ -141,6 +141,7 @@
 int misc_init_r(void)
 {
 	twl4030_power_init();
+	twl4030_power_mmc_init(0);
 	omap_die_id_display();
 	return 0;
 }