arm: dts: msm: add USB3 host mode 5V vbus regulator for 9630 MTP

The krypton MTP uses SMB1357 charger in reverse-boost mode
to supply 5V USB vbus in USB host mode.
The SMB1357 driver registers regulator name "smb1357_otg_supply".
Binding the regulator to the USB driver is done via the device tree.

Change-Id: Ib7a8066f5ab8c7ff0f9399e2953b570b2b1f0feb
Signed-off-by: Lena Salman <esalman@codeaurora.org>