arm/dt: apq8074: Enable USB3 in Host and USB2 in OTG mode

8074 DragonBoard uses USB3 port in host only mode and USB2 port in
OTG (dual role host and peripheral) mode using 2nd HSPHY and
PMIC VBUS and ID notifications for VBUS are supported from 2nd HS
port. Add necessary DT changes to support this configuration.

CRs-Fixed: 449500
Change-Id: I5ba78a7833eb5548daeca0075610f261f182bf82
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>