ARM: dts: am4372/dra7/omap5: Use "syscon-phy-power" instead of "ctrl-module"

Add "syscon-phy-power" property and remove the deprecated "ctrl-module"
property from SATA and USB PHY node. Also remove the unused control
module dt nodes.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>