ARM: dts: rhine: Give mhl-sii8334 the needed supplies

The mhl-sii8334 fails to retrieve its regulators during probe and while
cleaning up if calls free_irq() on an irq it has not yet requested and
the kernel go belly up.

Provide the power supply references to make the driver happy.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Revert "honami: disable mhl for now"

Without the psy exposed by mhl_sii8334 (ext-vbus), charging won't tell
usb that it's up and running and we have no USB.

This reverts commit 14e8434f223ebe1dd3ff4270a00252689280691d.
Merge pull request #16 from andersson/for-alin/rhine-usb-support

Correct MHL devicetree node for Rhine to make USB work