Revert "Disable map2430_musb_set_vbus, fix boot without usb"

This reverts commit 70ae794bf09616a8d61fcc20ad79c1349eac0ee5.
Revert "usb: musb: omap2430: Detect incorrect USB transceiver event notifications."

This reverts commit 08adcbd9731b5b7d6d93cbd57c9769effc75d8c5.