meta-zaius: Set VIO rails voltage when BMC boots

DD1.0 modules require a higher VIO for PCIE link stability.

Add service to set VIO voltage setpoint when BMC boots.
Add BitBake recipe to install service.
Add recipe to obmc-phosphor-image dependencies.

Signed-off-by: Xo Wang <xow@google.com>
Change-Id: Ia43d58683d3f26ac6ca684b5e662c45c38f47824
diff --git a/meta-zaius/recipes-phosphor/image/obmc-phosphor-image.bbappend b/meta-zaius/recipes-phosphor/image/obmc-phosphor-image.bbappend
index aa57bbf..00110cc 100644
--- a/meta-zaius/recipes-phosphor/image/obmc-phosphor-image.bbappend
+++ b/meta-zaius/recipes-phosphor/image/obmc-phosphor-image.bbappend
@@ -1 +1,2 @@
 OBMC_IMAGE_EXTRA_INSTALL_append = " mboxd"
+OBMC_IMAGE_EXTRA_INSTALL_append = " set-vio"