OMAP3: omap3_logic: Enable Android Fastboot

Android Fastboot requires USB.  The TWL4030 PMIC on omap3_logic handles USB traffic.
This patch sets up the USB gadget and Android Fastboot to match what is done in the
omap3_beagle project.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>