OMAP3 Move twl4030 power and led functions

Because twl4030 now has its own device files, move exiting
omap3 power_init_r to a new location.

power_init_r is the only function in board/omap3/common.
It initializes the twl4030 power for the board and enables
the led.

The power part of the the function is moved to twl4030_power_init in
drivers/power/twl4030.c The power compilation is conditional on the
existing config variable CONFIG_TWL4030_POWER.

The led part is moved to twl4030_led_init in the new file
drivers/misc/twl4030_led.c  The led compilation is conditional on
the new config variable CONFIG_TWL4030_LED

The directory board/omap3/common was removed because power_init_r
was the only function in it.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Heiko Schocher <hs@denx.de>
diff --git a/board/omap3/beagle/beagle.c b/board/omap3/beagle/beagle.c
index d268e18..5423650 100644
--- a/board/omap3/beagle/beagle.c
+++ b/board/omap3/beagle/beagle.c
@@ -30,6 +30,7 @@
  * MA 02111-1307 USA
  */
 #include <common.h>
+#include <twl4030.h>
 #include <asm/io.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/sys_proto.h>
@@ -105,7 +106,8 @@
 	gpio_t *gpio5_base = (gpio_t *)OMAP34XX_GPIO5_BASE;
 	gpio_t *gpio6_base = (gpio_t *)OMAP34XX_GPIO6_BASE;
 
-	power_init_r();
+	twl4030_power_init();
+	twl4030_led_init();
 
 	/* Configure GPIOs to output */
 	writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);